Horizon BBC2 - Infinity
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Discussion

Tuna

Original Poster:

19,930 posts

306 months

Wednesday 10th February 2010
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There are three types of people who will be watching this programme right now

1. People who are now getting angry with the television
2. People who let it all wash over them and are about to turn over
3. People who are grinning inanely at how wonderful it is

Gun

13,432 posts

240 months

Wednesday 10th February 2010
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I love shows like this, they just show that there are things in the Universe that we just don't have a clue how or why they work.

evenflow

8,838 posts

304 months

Wednesday 10th February 2010
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A cross between 1 and 3 for me.

Just mind-melting.

An infinite number of infintely big universes, containing infinite copies of you leading infinite variations of your life.

nuts

Eric Mc

124,663 posts

287 months

Wednesday 10th February 2010
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I decided that I would only get confused. I watched "Copsm cars and Criminals" instead.

TheEnd

15,370 posts

210 months

Wednesday 10th February 2010
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Eric Mc said:
I decided that I would only get confused. I watched "Copsm cars and Criminals" instead.
which universe was that in?

whitechief

4,431 posts

217 months

Wednesday 10th February 2010
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I enjoyed it but felt a bit mind boggled spin

koenig999

1,667 posts

254 months

Wednesday 10th February 2010
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It was good, perhaps a bit theatrical in presentation.

I loved the mad maths professor's den!

Koenig

Frankeh

12,558 posts

207 months

Wednesday 10th February 2010
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Watching it at the moment.
No realy mind blowing stuff here imo.

I've always had a pretty good grasp of infinity.

If the universe is infinate then somewhere there's a guy just like me.

He has had the exact same life experiences as me, however when typing up this post he took a second longer doing it.

I wish this show wasn't so stylised though. Feel like I'm in some kind of film noir maths lesson.

Pobolycwm

327 posts

202 months

Thursday 11th February 2010
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Some interesting playing with numbers. The odds/time req`d on the monkey typing just 17 letters in a correct sequence ( was it more than 13.6 billion years ? ) let alone the complete works of Shakespeare was neat.

The referencing to the universe being infinite isn`t really correct though

I didn`t think the universe was/is infinite, if it`s been expanding by creating space at the speed of light since the big bang then it`s around 13.6 billion light years from it`s centre to edge, you can`t say what`s beyond the edge because there isn`t anything, unless you dip into Alice in Wonderland type dreaming

I find a way of rationalising infinity is to take the three primary colours, you can make an infinite number of colours / shades from them, you`ll need an infinite number of drips of each colour but you only need the three colours

Eric Mc

124,663 posts

287 months

Thursday 11th February 2010
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TheEnd said:
Eric Mc said:
I decided that I would only get confused. I watched "Copsm cars and Criminals" instead.
which universe was that in?
It was on Planet BBC 1 (correctly spelled, of course).

guffhoover

564 posts

208 months

Thursday 11th February 2010
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I found it quite interesting but don't understand/disagreed with the ending where there are infinite me's in the infinite universe etc etc.

From what i understand. Infinity is born from counting; if the largest number in the world is n there is always n+1. Because of this you can always add something to infinity and you can subtract somehting from infinity and still get infinity.......and if you had say two infinite numbers and you subtract them the result can be anything from 0 to infinity as you cannot tell what number each inifnite number represented (beacuse it is too large)

But i do not agree that there are infinite copies of me, dreams, worlds, universes all doing potentially the same things infinitely. Beacuse to me infinity is n+1 it does not at any point find that n+1 is so large that is resets and starts counting again. It just keeps going producing infinite n+1 results which are all unique.


evenflow

8,838 posts

304 months

Thursday 11th February 2010
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guffhoover said:
But i do not agree that there are infinite copies of me, dreams, worlds, universes all doing potentially the same things infinitely. Beacuse to me infinity is n+1 it does not at any point find that n+1 is so large that is resets and starts counting again. It just keeps going producing infinite n+1 results which are all unique.
But (and this is my understanding, so may well be wrong) there are only a finite number of ways that a collection of atoms (or sub-atomic particles) can be arranged, therefore at some point an exact copy of you would be produced.

Incredible Sulk

5,425 posts

217 months

Thursday 11th February 2010
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guffhoover said:
I
From what i understand. Infinity is born from counting; if the largest number in the world is n there is always n+1. Because of this you can always add something to infinity and you can subtract somehting from infinity and still get infinity.......and if you had say two infinite numbers and you subtract them the result can be anything from 0 to infinity as you cannot tell what number each inifnite number represented (beacuse it is too large)
I thought someone said in the programme that infinity - infinity was either 0 or 1?

TBH I'm still trying to get my head around the bit with the diagonals - I had to go and have a stiff whisky after they dropped that one on me.

guffhoover

564 posts

208 months

Thursday 11th February 2010
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evenflow said:
guffhoover said:
But i do not agree that there are infinite copies of me, dreams, worlds, universes all doing potentially the same things infinitely. Beacuse to me infinity is n+1 it does not at any point find that n+1 is so large that is resets and starts counting again. It just keeps going producing infinite n+1 results which are all unique.
But (and this is my understanding, so may well be wrong) there are only a finite number of ways that a collection of atoms (or sub-atomic particles) can be arranged, therefore at some point an exact copy of you would be produced.
I like your comment; i hadn't thought of it in that manner. Life as we know it is bound by atoms / sub-atomic particles. I think i am correct in assuming that the universe, us and the rules that govern it all relate to these little critters. If we know there are a finite number of arrangements of atoms and those atoms dictate 'life' then the fact that we could (given enough time) count pass this finite number doesn't mean anything; it doesn't add anything to our world. In which case you could say the largest number is x and infinity is nothing but a concept and can be disregarded for reality i.e. infinity becomes x.

Say the atomic world repeats infinitely and in theory the atoms that make me are repeated. Surely that means that there is somebody who looks like me (a twin of sorts) but my decisions, dreams, subconscious and dare i say it soul are not defined by atomic make up. Or does it?

Is there another level of rules which relate to those things that are not governed by atoms. The things of the human consciousness (sp) that cannot be measured. Is this where science starts to fall away and philosophy rears its warped head?

evenflow

8,838 posts

304 months

Thursday 11th February 2010
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guffhoover said:
I like your comment; i hadn't thought of it in that manner. Life as we know it is bound by atoms / sub-atomic particles. I think i am correct in assuming that the universe, us and the rules that govern it all relate to these little critters.
I'm not a scientist, but this is my understanding too.

guffhoover said:
Say the atomic world repeats infinitely and in theory the atoms that make me are repeated. Surely that means that there is somebody who looks like me (a twin of sorts) but my decisions, dreams, subconscious and dare i say it soul are not defined by atomic make up. Or does it?

Is there another level of rules which relate to those things that are not governed by atoms. The things of the human consciousness (sp) that cannot be measured. Is this where science starts to fall away and philosophy rears its warped head?
I certainly think that concepts such as infinity take science to a more philosophical place. There is also a subjective element of course: a religious person may say that your soul is not defined by your sub-atomic make up; a non-religious one that the soul doesn't exist and chemicals dictate your entire physical and mental being.

Fascinating stuff.

evenflow

8,838 posts

304 months

Thursday 11th February 2010
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ETA: I don't know what a guffhoover is, but they sound really useful!

anonymous-user

76 months

Thursday 11th February 2010
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Very good program I thought... made my head swim on a couple of occasions (still can't get that infinity-infinity=infinity spin) but loved the thought that with infinity the impossible becomes probable (or something like that)!!

scratchchin

Frankeh

12,558 posts

207 months

Thursday 11th February 2010
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Somewhere in the distant universe, there's a version of earth where I have supreme power.
I like to think I'm riding around on a golden horse trampling over the little people on the way to my candyfloss castle.

I hate this crappy iteration of myself.

Where's my gold horse, dammit.

sy534534

249 posts

199 months

Thursday 11th February 2010
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Pobolycwm said:
The referencing to the universe being infinite isn`t really correct though

I didn`t think the universe was/is infinite, if it`s been expanding by creating space at the speed of light since the big bang then it`s around 13.6 billion light years from it`s centre to edge, you can`t say what`s beyond the edge because there isn`t anything, unless you dip into Alice in Wonderland type dreaming
No, that's the VISIBLE universe. The actual universe has been expanding for 13.6 billion years yes, BUT it didn't expand at the speed of light! If you look at the inflation theory and quantum theory, it appears that the initial expansion was before the laws of physics applied and was at a speed far in excess of the speed of light. It is NOW expanding at the speed of light, but we don't know how big it was after the initial inflation took place. HTH
Oh, and there is no centre of the universe.

Edited by sy534534 on Thursday 11th February 19:09

him_over_there

970 posts

228 months

Friday 12th February 2010
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http://en.wikipedia.org/wiki/Banach%E2%80%93Tarski...

Another neat paradox.

[quote]
The Banach–Tarski paradox is a theorem in set theoretic geometry which states that a solid ball in 3-dimensional space can be split into a finite number of non-overlapping pieces, which can then be put back together in a different way to yield two identical copies of the original ball.

[/quote]