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[Music]
we are surrounded by
order over the last 300 years we've
developed amazing new ways to harness
energy and we've used this ability to
transform our environment
[Music]
but all these structures that we see
around us are just one type of visible
order that we've created here on planet
Earth there's another type of invisible
order every bit as complex that we're
only now beginning to understand it's
something that nature has been
harnessing for billions of years
something we call information
[Music]
the concept of information is a very
strange one it's actually a very
difficult idea to get your head round
but in the journey to try and understand
it scientists would discover that
information is actually a fundamental
part of our
universe this film is the story of
information and the immense Power
released from manipul ating
it it's the story of how we discovered
the power of
symbols and how writing codes and
computers would revolutionize our
understanding of the
[Music]
universe is the story of how in a cosmos
collapsing into disorder information can
be used to create order and structure
[Music]
[Music]
[Music]
[Music]
at first glance information appears to
be a very straightforward
idea it exists everywhere in our world
World our brains are filled with it and
we constantly exchange it between each
other but information has been one of
the subtlest and most difficult Concepts
that science has had to Grapple
with understanding and harnessing it has
been an extremely long and difficult
process the power of information would
first be glimpsed over 5,000 years ago
when a revolutionary technology was
developed one that would set the modern
world in
[Music]
motion over the years mankind has come
up with some pretty remarkable
stuff but of all Humanity's inventions
there's one that really stands out it's
the most transformative disruptive cre
ative technology ever conceived and it's
also one of the
simplest that invention is the written
word at its heart writing is all about
the transmission and storage of
information
[Music]
words allow ideas to endure through
time these are some of the earliest
texts in existence and they give us an
incredible insight into the development
of
writing I've come to meet one of the few
people who can still read them Dr Irving
finle we take writing so much for
granted these days that I guess it's
easy to forget
that it was invented it certainly was
how did it first come about the earliest
writing that we have is written on play
tablets and it comes from Iraq ancient
Mesopotamia and it comes from the
culture of the Sumerians and what
happened here was that they started off
with purely pictographic signs to
express an idea and this lasted for
quite a long time until it occurred to
somebody perhaps accidentally that what
you could do is to make one of these
graphic symbols on the surface of the
clay not for what it looked like but for
what the sound it represented was so a
picture of an object a picture of a
sound that's what we always call the
giant leap for
mankind by combining different sounding
pictures the ancient Mesopotamians could
express any idea
imaginable the essence of their
breakthrough was to to see for example
that a picture of an i and a picture of
a deer didn't have to mean an i and a
deer the pictures could be used simply
for the sounds they made in this case
idea once this system was discovered it
meant anything that could be spoken even
the most strange or abstract thoughts
could be transformed into symbols
information could now live outside of
the human
brain and this meant it could endure
over vast spans of
time it was an idea that fascinated the
ancient
[Music]
Mesopotamians this lovely tablet here
this King Oram who lived in about uh
2,100 BC okay he buried this in the
foundations of this Temple as a message
for the future this king or namu the
powerful male king of er king of Suma
and aad so that's the South and the
north part of ancient Mesopotamia her
house he built for her and he even
restored it afterwards so this is a
proud thing and he wants everybody to
know about it and this is a real message
for the future what's so remarkable for
me is that this is information stored on
clay for thousands of years yes ideas
that someone had for 4,000 years ago are
still there you have ideas you have
speech you have human hopes you have
literature you have prayers you have all
these sorts of outpourings of the human
soul fixed forever in
clay by turning sounds into symbols the
Mesopotamian scribes had discovered that
information could be changed very easily
from one form to
another from something that existed as
spoken sounds to something that existed
as symbols on clay
tablets but this was just the beginning
humans were yet to realize the true
power of symbols
[Music]
for 4,000 years writing was pretty much
the only information technology people
used but in the 19th century during the
great industrial revolution things would
begin to
change in the malstrom of ideas and
inventions a series of seemingly
unconnected Technologies would emerge em
merge that all began to hint at the
immense power of
information these Technologies would all
come from very practical very unth
theoretical Origins but they would start
to reveal that information was a much
deeper and more powerful concept than
anyone had
realized one of the first of a new breed
of information Technologies would be
developed in the French city of leyon at
the end of the 18th
[Music]
century 18th century Leon was home to
some of the best Craftsmen in the world
it was also a place of great opulence
Grandeur and above all money thanks to
the rich and fashionable Aristocrats and
bankers who live there it will become
home to the greater silk weaving
industry in the world almost a third of
the city's inhabitants worked in the
silk industry and it was home to over
14,000
looms this is broade the material that
made Leon famous it's a beautiful and
intricately woven fabric that as you
might imagine is incredibly labor
intensive to produce a Twan team working
flat out for a day could at best produce
about an inch of this amazing
stuff the demand for the Fine Fabrics of
Leon was immense but the silk weaving
process was painfully
slow but thanks to a soldier and Weaver
named Joseph Marie jacard a device will
be developed to help speed up weaving in
the process it would would reveal a
fundamental truth about
[Music]
information building on the work of a
number of others in 1804 jacard patented
his invention at the time the loom was
the most complex mechanism ever built by
humankind
[Music]
Jack hard's Loom was a miracle of
Ingenuity you see he designed a single
machine which without any alteration to
its construction its Hardware to use a
modern term could be programmed to weave
any pattern a designer could think up in
fact it could produce a whole range of
silk designs with barely a pause in
production
jackard had found the Holy Grail of
weaving and his secret was a simple
punched
[Music]
card the punched card held within it the
essence of the designs that the loom
would
weave when these punched cards were fed
into the loom they would act to lower
and lift the relevant
threads recreating the pattern in
silk any design you could think of could
be broken down and translated into a
series of Punch Cards and could then be
woven by the loom
[Music]
information was being translated from
picture to punch card to the finished
fabric it is a machine for weaving
textiles that's its tasks but there is
nothing specific about what textile it
should weave that is contained in the
information which is encoded on the
cards so if you like the cards program
it that is to say instruct it what to do
and this has huge resonances for what
came
later Jack hard's Loom revolutionized
the silk industry but at its heart was
something deeper something more
Universal than its industrial Origins
and its ability to speed up weaving the
loom revealed the power of abstracting
information it showed that you can take
the essence of something extract the
Vital Information and represent it in
another form
writing had revealed you could use a set
of symbols to capture spoken language
now jacard had shown that with just two
symbols a hole or a blank space it was
possible to capture the information in
any picture
[Music]
imaginable this is a portrait of jackard
that's been woven in silk it's
spectacularly detailed with hundreds of
thousands of stitches and yet all the
information you need to capture this
lifelike image can be stored in a series
of punched cards 24,000 of them to be
precise
[Music]
this picture is a fantastic example of a
really far-reaching
idea that the simplest of systems in
this case cards with a series of holes
punched in them can capture the essence
of something much much more
complicated if 24,000 Punch Cards could
create an image like
[Applause]
this what would happen if you had 24
million or 24 trillion
[Music]
cards what new types of complex
information might be able to be captured
and represented
[Music]
jacard had stumbled on an incredibly
deep and far reaching
[Music]
idea as long as you have enough of them
simple symbols can be used to describe
anything in the entire universe
translating information into abstract
symbols to store and process had proven
to be an extremely powerful
idea but the way information was sent
the way it was communicated hadn't
changed for thousands of
years the world before
telecommunications technology was a very
different place because you can only
send messages as fast as you could send
objects so you'd write a message on a
piece of paper or something like that
and then you'd either give it to
somebody who could run very fast or
could go on a horse or on a ship very
fast but the point was you could only
send information as fast as you could
send
matter but in the 19th century the speed
at which information could be sent would
dramatically increase thanks to an
incredible new information carrying
medium
electricity very soon after electricity
was discovered excitement grew about its
potential as a medium to transmit
messages it seemed that if it could be
controlled and summoned at will
electricity would be the perfect medium
for sending
information electricity seemed to offer
many advantages as a way of sending
messages
it was sent down a wire which means it
could pretty much go anywhere it wasn't
affected by bad weather conditions and
most importantly it could move very
quickly but there was one big problem
facing those in the early 19th century
who wanted to use electricity as a means
to communicate how could such a simple
signal be used to send complex
messages here in the science museum
archive they have one of the most
impressive collections of early
electronic communications technology in
the
world here are just some of the early
devices designed to send signals using
electricity this one's particularly fun
it was developed in 1809 in Bavaria by
Samuel suing so if the sender wants to
send letter A sends a current through
that corresponding wire at the
receiver's end is a tank full of liquid
and the electric current forces a
chemical reaction causing bubbles to
appear above the corresponding letter A
the whole process is ingenious if a
little
laborious but what's really fun is that
the sender has to let the receiver know
he's about to send a signal he does that
by sending extra electric current so
that more bubbles appear forcing an arm
upwards which releases a
ball and triggers a bell
as you can imagine this wouldn't be the
quickest of systems after summering all
sorts of approaches were taken in trying
to crack the problem of sending messages
using
electricity but they all suffered from
having overco complex
codes these devices each cunning and
Innovative in its own way were all
destined for the scrap peep of history
and that's because in the 1840s they
were superseded by a way of sending
signals that still endures to this day
it was developed by artist and
entrepreneur Samuel Mor together with
his colleague Alfred Vil what was so
special about their system wasn't the
technology that was used to carry their
messages but the incredibly simple and
effective code they used to send them
[Music]
just like jaar's Punch Cards The Genius
of mors and veil's code lay in its
Simplicity using a collection of short
and long pulses of electrical current
they could spell out the letters of the
alphabet Veil suggested the most
frequent letters in the English language
get the shortest
code so an e is sent like
this while an X is sent like
this this means that messages can be
sent quickly and
efficiently figuring out the code part
of it the software if you like was as
complicated is figuring out the hardware
side of things with the batteries and
the and the wires and together they made
an entirely new technology which is the
electric
Telegraph the telegraph had once again
revealed the power of translating
information from one medium to
another information had at first been
fixed in human
brains then held in symbols in clay and
paper and punched
cards now thanks to Morse information
could reside in electricity
and this made it unimaginably lighter
and quicker than it had ever been
before in just a few short years the
telegraph Network would spread around
the entire Globe laying the foundations
of the modern Information
[Music]
Age between them Jack card and Morse had
found new and novel ways to manipulate
process and transmit information what
had begun with the invention of writing
thousands of years ago had culminated in
The Binding of the entire planet in a
lce of wires carrying highly abstracted
information at incredible speeds for
people at the end of the 19th century it
may have seemed that Humanity's ability
to manipulate and transmit information
was that it's Zenith they couldn't have
been more wrong information would reveal
itself to be a more important more
fundamental concept than anyone could
have
imagined it would soon become apparent
that information wasn't just about human
communication it was a much further
reaching idea than
that the true nature of information
would first be hinted at thanks to a Str
problem one dreamed up by a brilliant
Scottish physicist who appeared to be
thinking about something else
[Music]
entirely James Clark Maxwell was one of
the great minds of the 19th century
among his many interests Maxwell became
fascinated by the science of
thermodynamics the study of heat and
motion that had sprung up with the birth
of the steam
[Music]
engine Maxwell was one of the first to
understand that heat is really just the
motion of molecules the hotter something
is the faster its molecule are
moving this idea would lead Maxwell to
dream up a very bizarre thought
experiment in which information played a
crucial
role Maxwell theorized that simply by
knowing what's going on inside a box
full of air it would be possible to make
one half hotter and the other half
colder
think of it like building an oven next
to a fridge without using any
energy it sounds crazy but Maxwell's
argument was extremely persuasive it
goes like this imagine a small demon
perched on top of the box who has such
excellent eyesight that he can observe
accurately the motion of all the
molecules of air inside the
box now crucially he's in control of a
partition that divides the box into two
halves every every time he sees a fast
moving molecule approaching the
partition from the right hand side he
opens it up allowing it through to the
left and every time he sees a slow
moving molecule approaching the
partition from the left he opens it up
allowing the molecule through to the
right
now you can see what's going to happen
over time all the fast moving hot
molecules will accumulate on the left
hand side of the box and all the slow
moving cold molecules on the right
crucially the demon has done this
salting with nothing more than
information about the motion of the
molecules Maxwell's demon seem to say
that just by having information about
the molecules you could create order
from
disorder this idea flew in the face of
19th century
thinking the science of thermodynamics
had shown very clearly that over time
the entropy of the universe its disorder
would always increase things were
destined to fall apart
but the demon seemed to suggest that you
could put things back together without
using any energy at
all just by using information you could
create
order it would prove to be a
fishlyn least because the brilliant
Maxwell had come up with an idea far far
ahead of its time
it's amazing the the impact he had had
on on physics and that he came up with
this very intricate concept and that he
already in some sense pre well
anticipated the the notion of
information that wasn't actually there
at that time there was no such
thing I think this idea was was
astonishing he didn't really have a
resolution he raised it as a as a con
conern and he left it open and I think
what followed is more or less 120 years
of of extremely exciting debates and
developments to try to resolve and
address this uh
[Music]
concern so what was going on with
Maxwell's demon it may sound far-fetched
and fanciful but imagine the
possibilities if we could build a
machine in the real world that could
mimic the actions of the demon I could
use it to heat a cup of coffee or to run
an engine or to power a city all using
nothing more than pure
information it's as though we could
create order in the universe without
expending any
energy scientists felt intuitively that
it had to be wrong the problem was it
would take over a hundred years to solve
the
problem while Maxwell's riddle rumbled
on something quite unexpected was to
happen a new device was dreamt up that
could perform quite incredible and
complex tasks simply by processing
information what's more this was a
device that could actually be built the
machine would come to be known as the
computer and the idea behind it came
from a quite remarkable and Visionary
scientist Alan Turing was the first
person to conceive of the modern
computer a machine whose sole function
is to manipulate and process information
a machine that harnesses the power of
abstract symbols a machine that enables
almost every aspect of the modern
world turing's incredible idea would
first appear in a now legendary
mathematical paper published in
1936 in his brief life Alan churing
brought fresh groundbreaking ideas to a
whole range of topics from cryptography
through to biology the sheer breth of
his thinking is
breathtaking but for most scientists
it's the concepts he outlined in these
36 pages that Mark him out as truly
special it's this work that makes him
worthy of the title
genius published when churing was just
24 years old on computable numbers with
an application to the Enid's problem
tackles the foundations of mathematical
logic what's amazing about it is that
the idea for the modern computer emerged
simply as a consequence of Ching's
brilliant
reasoning he was thinking about
something else entirely he wasn't you
know sort of sitting there thinking I
want to try and invent the modern
computer he was thinking about this very
abstract problem in the foundations of
mathematics and the computer kind of
fell sideways out of that research
completely unexpectedly I mean nobody
could have guessed that turing's um you
know very abstract abstruse research in
the foundations of mathematics could
produce anything of any practical value
whatsoever let alone a machine that was
going to change the lives of you know
nearly everyone on the
planet touring had set out to understand
if certain processes in mathematics
could be done simply by following a set
of rules and this is what would get him
thinking about
computers in 1936 the word computer had
a very different meaning to what it does
today it meant a real person with a
pencil and paper engaged in arithmetical
calculations Banks hired many such
people often women to work out interest
payments
the Inland Revenue employed them to work
out how much tax to charge observatories
hired them to calculate navigational
data human computers were vital to the
modern world dealing with the huge
amounts of information produced as
science and industry grew ever more
complex what Turing did in his 1936
paper was ask a simple but profound
question
what goes on in the mind of a person
carrying out a
computation to do this he first had to
discard all the Superfluous details so
that only the very essence of the
process of computation remained so first
off went the ink pot then the pen then
the slide rule then the pencils and the
pads of paper all these things made it
easier but none of them were absolutely
crucial to the person car in out the
computation now churing asked what goes
on in the brain of a human computer it's
a vastly complex biological system
capable of Consciousness thoughts and
insights but to touring none of these
was critical to the process of
computation either touring realized that
to compute something a set of rules had
to be followed precisely that was all
he takes the higher level intelligence
that was presupposed to be involved in
calculation which is thinking and says
you can have a mechanical process that
is and by mechanically means an
unthinking process to perform the same
act and therefore eliminates the the
necessity of human agency with all its
high level level functions and that is
what is revolutionary about what he
tries to
do during's brilliant mind saw that any
calculation had two aspects the data and
the instructions for what to do with the
data and this will be the key to his
Insight juring had to find a way of
getting machines to understand
instructions like add subtract multiply
divide and so on in the same way that
humans do in other words he had to find
a way of translating instructions like
the
into a language that machines could
understand and with flawless impeccable
logic touring did exactly
that this may look like a random series
of ones and zeros but to a Computing
machine it's a set of instructions that
can be read off step by step telling the
machine to behave in a certain
way so while a human computer could look
at this symbol and understand the
process that was required the Computing
machine had to have it explained like
this this paper tape that churing
envisaged is what we would Now call the
memory of the
computer but churing didn't stop
there juring realized that feeding a
machine instructions in this way had an
amazing
consequence it meant that just one
machine is needed to perform almost any
task you can think of it's a beautifully
simple Concept in order to get the
machine to do something new all you had
to do was feed it a new set of
instructions new
information this idea became known as
the universal touring
machine the more you wanted your machine
to do the longer the tape had to
be bigger memories could hold complex
multi-layered instructions about how to
process and order any kind of
information
imaginable with a big enough memory the
computer will be capable of an almost
Limitless number of
tasks this idea of Chings that a
multitude of different tasks can be
carried out Simply by giving a Computing
machine a long sequence of instructions
is his greatest Legacy since his paper
touring's dream has been realized so
calculations making phone calls
recording moving images writing letters
listening to music none of these require
bespoke machines they can all be carried
out on a single
device a Computing machine
this phone is a modern incarnation of
touring's amazing idea inside here are
many many instructions what we' call
programs or software or apps that are
nothing more than a long sequence of
numbers telling the phone what to
do what's amazing about touring's idea
is its incredible scope the sets of
instructions that can be fed to a
computer could tell it how to mimic
telephones or
typewriters but they could also describe
the rules of nature the laws of
physics the processes of the natural
world this is a simulation of many
millions of particles behaving like a
fluid to work out how it flows the
computer simply follows a set of
instructions held in its
memory this only begins to hint at the
power of computing
machines this is a computer simulation
of the large scale structure of the
entire universe and it reveals the true
power of Ching's
idea turning instructions into symbols
that a machine can understand allows to
recreate not just a simple picture or
sound but a process a system something
that is changing and
[Music]
evolving by manipulating simple symbols
computers are capable of capturing the
essence the order of the natural world
itself
[Music]
by thinking about how the human brain
processes and computes information Alan
churing had had one of the most
important ideas of the 20th
[Music]
century the power of information was
revealing itself
[Music]
it would be very easy to think that
after Ching's ideas Were Made Real the
true power of information would be
Unleashed but churing was only half the
story The Modern Information Age would
require another idea one that would
finally pin down the nature of
information and its relationship to the
order and disorder of the universe
it was an idea that would be dreamt up
by a gifted and eccentric mathematician
and
[Music]
engineer Claude Shannon was a true
Maverick and his desire to tackle
unusual problems would lead to a
revolutionary new
idea one that would uncover the
fundamental nature of information and
the process of communication in all its
varied
forms this is Claude Shannon's paper a
mathematical theory of communication now
the title may sound a bit dry but trust
me it's one of the most important
scientific papers of the 20th century
not only did it lay the foundations for
the modern world's communication Network
it also gave us fresh insights into
human language into things we do
intuitively like speaking and
writing the paper was published in
1948 while Shannon was working at the
Bell labs in New Jersey the research arm
of the vast Bell Telephone Network it
was an institution famous for its
Forward Thinking relaxed
atmosphere the mathematicians were free
to work on any problem that interested
them the only thing that the laboratory
management required of them is that they
keep an open door and if anybody from
any other department came with a problem
that they would at least think about it
otherwise they were absolutely free and
the atmosphere the were atmosphere was
incredible people were playing and
encouraged to
play hello I'm Claud Shannon a
mathematician here at the Bell Telephone
Laboratories Claude Shannon in
particular killer was given free reign
to do pretty much whatever he wanted
this is Theus Theus is an electrically
controlled
Mouse oh they treated him as their
darling I never saw him juggle but I
certainly saw him right as unicycle he
brought it to work one day and he must
have costed BBs at at least a 100 men
hours of time
but despite the frivolity the Bell
Telephone Network faced a huge problem
every day they transmitted vast amounts
of electronic information all across the
world but they had no real idea of how
to measure this information properly or
how to quantify
it in short their entire business was
built on something they didn't actually
understand amazing ly their Superstar
employee Claude Shannon would give them
exactly what they
[Music]
needed in this paper Shannon did
something absolutely incredible he took
the vague and mysterious concept of
information and managed to pin it down
now he didn't do this using some
cleverly worded philosophical definition
he actually found a way to measure the
information contained in a
message amazingly Shannon realized that
the quantity of information in a message
had nothing to do with its meaning
instead he showed it was related solely
to how unusual the message
was information is related to
unexpectedness so news is news because
it's it's unexpected and the more
unexpected it is the more newsworthy it
is so if today's news was the same as
yesterday's news there would be no news
at all and the their information content
would be zero so suddenly you have a
relationship
between
unexpectedness
and
information but Shannon was to go
further and give information its very
own unit of measurement
so how did he do this well he showed
that any message you care to send could
be translated into binary digits a long
sequence of ones and zeros so a simple
greeting like hello could be written
like
this or like
this just think of this as another way
of writing the same
message Shannon realized that
transforming information into binary
digits would be an immensely powerful
act it would make information manageable
exact controllable and
[Music]
precise in his paper Shannon showed that
a single binary digit one of these ones
or zeros is a a fundamental unit of
information think of it as an atom of
information the smallest possible piece
then having defined this basic unit he
even gave us a name for it one we're all
familiar with today he used a shortening
of the phrase binary digit
bit The Humble bit turned out to be an
enormously powerful
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idea the bit as the smallest quantity of
information it is highly significant
because it's the fundamental atom it is
the smallest unit of information in
which there's sufficient discrimination
to communicate anything at
all the power of the bit lay in its
universality any system that has two
states like a coin with heads or tails
can carry one bit of
information one or zero punched or not
punched on or off stop or go all of
these systems can store one bit of
information thanks to Shannon the bit
became the common language of all
information anything sounds pictures
text can be turned into bits and
transmitted by any system capable of
being in just two
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states Shannon had founded a new
far-reaching Theory the ideas he began
to explore would form the Cornerstone of
what we now call information theory he
taken an abstract concept information
and turn it into something tangible
what had been just a vague notion was
now measurable Something
Real the idea of converting into bits
into making things digital would
fundamentally transform many aspects of
human
society but information isn't just
something humans create we're beginning
to understand that this concept lies at
the heart not only of 21st century Human
Society but also at the heart of the
physical world itself every bit of
information we've ever created every
book every film the entire contents of
the internet amounts to pretty much
nothing when compared with the
information content of Nature and that's
because even the most insignificant
event contains a spectacular amount of
information let me show
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you imagine how many bits of information
you would need to describe this
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the beautiful and intricate interplay of
physical laws taking place at scales and
time frames that are normally
imperceptible to
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us but here you're still only seeing a
fraction of the complexity of nature
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imagine the interplay between the
trillions upon trillions of
atoms the amount of bits you would need
to describe this is almost unimaginable
but what's amazing is that now thanks to
the ideas of churing and Shannon we're
able to describe model and simulate
nature in ever greater
detail but this isn't the end of the
story information it seems isn't just a
way of describing
reality in the last few years we've
discovered that information is actually
an inep able part of the physical
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world it's a really difficult idea to
get to grips with but information
everything from a beatoven symphony to
the contents of a dictionary even a
fleeting thought all information needs
to be embodied in some form of physical
system amazingly the reason we
understand the true connection between
information and reality is because of
Maxwell's
demon remember it seemed like the demon
could use information to create order in
a box of air that started out completely
disordered moreover it could do this
without expending ing any
effort information seemed to be able to
break the laws of
physics well that's not true it
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can't the reason why Maxwell's demon
can't get energy for free lies here in
his head
what was discovered was this the demon
really is using nothing more than
information to create useful energy but
this doesn't mean that he's getting
something for nothing remember how the
demon Works he spots a fast moving
molecule on one side of the Box opens a
partition and lets it through to the
other side but each time he does that he
has to store information about that
molecule's speed in his
memory soon his memory will fill up and
then he can only continue if he starts
deleting
information crucially this deletion
would require him to expend
energy the demon needs to keep a record
of which molecules are moving where and
if the recordkeeping device is only
finite size at some point the Demon's
going to have to erase it that's an
irreversible process that increases the
entropy of the universe it's the Eraser
of information
that increases entropy once and for
all what was discovered is that there's
a certain specific minimum amount of
energy known as the landour limit that's
required to delete one bit of
information it's tiny less than a
trillion trillionth of the amount of
energy in a gram of sugar but it's real
it's a part of the fundamental fabric of
the
Universe amazingly we can now do real
experiments that test aspects of
Maxwell's idea by using lasers and tiny
particles of dust scientists around the
world have explored the relationship
between information and energy with
Incredible
accuracy Maxwell's thought experiments
dreamt up in the age of steam Still
Remains at The Cutting Edge of
scientific research
today Maxwell's demon links together two
of the most important Concepts in
science the study of energy and the
study of information and shows that the
two are profoundly linked what we now
know is that information far from being
some abstract concept A obeys the same
laws of physics as everything else in
the
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universe information is not just an
abstraction uh just a mathematical thing
or formula that you write on the paper
it actually information is carried by
something so it's encoded onto something
a stone a book um a CD uh whatever
there's a carrier where the is on and
that means that information behaves
according to the laws of physics so it
cannot break the laws of
physics what Humanity has learned over
the last few Millennia is that
information can never be divorced from
the physical
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world but this is not a hind Hance what
makes information so powerful is the
fact it can be stored in any physical
system we
choose from using Stone and Clay to
allow information to be preserved over
eons to using electricity and light so
it can be sent quickly the medium that
stores information gives it unique
properties today scientists are
exploring new ways of manipulating
information using everything from DNA to
Quantum particles they hope that this
work will Usher in a new information age
every bit as transformative as the
last what we now know is that we're just
at the beginning of our journey to
unlock the power of information
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it's always been clear that creating
physical order the structures we see
around us has a cost we need to do work
to expend energy to build them but in
the last few years we've learned that
ordering information creating the
invisible digital structures of the
modern world also has an inescapable
cost as abstract and ethereal as
information seems we now know it must
always be embodied in a physical system
I find this an incredibly exciting idea
think about it this way a lump of clay
can be used to write a poem on molecules
of air can carry the sound of a symphony
and a single photon is like a
paintbrush every aspect of the physical
Universe can can be thought of as a
blank canvas which we can use to build
Beauty structure and Order
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oh
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