A theorom on the universe

[lightoftruth]

At the weekend i came up with a possible theorem. Bear in mind i am not an astro-pyshisict or anything like that i just have a lot of ideas. what do you think of this,

Time going backwards is not highly improbable only time changing direction is highly improbable. So as time goes on and on (due to chaos theory) eventually becomes less and less improbable until it becomes probable and does happen. time then goes backwards until it becomes probable once more for time to go forwards and the whole proccess starts once more.

[jake-the-peg]

Why do you believe time changing direction is improbable rather than impossible.

Lets compare with another law of physics gravity.

An apple falling up is only improbable. If you waited long enough this would happen - Hmm

To suggest that physical laws would change direction given enough time would be an extraordinary claim and require extra-ordinary evidence

[fo3nix]

your theory is perfectly sound. that's the great thing about theories: anyone can think them up. they might be right too.

however, to have any serious thoughts into it (i don't really think you do), you need mathematics as the language to describe what you are saying. for instance, why it time passing due to chaos theory?

the laws of physics cannot change direction. but time is not a law of physics. time is just some dimensional quantity which we measure. it quite possibly could change direction. if it does, and our current laws don't allow for this, then it means that our laws do not take everything into account. the laws of physics, if correct, cannot change. but they can be wrong.

lightoftruth, think on this: when you add your milk to your tea+water mixture, do you think it's possible for the milk and tea-water to stay separate? Answer: yes, it is. perfectly possible. just very unlikely.

[jake-the-peg]

I hate to pick hairs but in a sense time is a law of physics or rather time symmetry is.

This is the notion that laws of physics are the same if you were to be able to run them backwards in time.

Time or T-symmetry tends to hold at low levels, ie in quantum systems but not at larger levels (anywhere that entropy creeps in)

Low level situations where symmetry breaking is observed are really important. When Charge-Parity symmetry was observed breaking lead to anti-matter - this also showed Time was not symmetrical but I don't think it's been found in any similar cases.

Richard Feynman wrote a great lecture on symmetry breaking it's in his lectures and in "6 not-so easy pieces" which is worth reading.

The gist of that is also found here:

http://www.lbl.gov/abc/wallchart/chapters/05/2.html

[mibn2cweus]

Time reversal would not be in evidence. We witness the progression of time through observation of effects that are the products of the causes that precede them and measure it by the relationship between the speed and distance of subsequent events. If time could or did go backwards, evidence for this phenomenon would necessarily be lost in the process. Any �evidence� to the contrary is based on, obfuscation of cause and effect relationships, illusion.