# Randomness in time reversal case

• elementHTTP
In summary, the article discusses the validity of fluctuation theorems, which are a generalization of thermodynamics on small scales. The article does not mention reversing time or any other specific concept.f

#### elementHTTP

I have dice whit starting temperature of 0 K in vacuum and its displaying number 1 ,after drop it displays number 6 (for example) .
Now if we reverse time, will dice sitting still on surface return to original position (displaying number one ) or it will display different random number ?

Since we cannot reverse time, I don't see that this question has an answer. (We could of course film this and play the film backwards, but I don't think this is your question)

If time would be reversed in your example, why wouldn't the dice return to the previous position? After all this is effectively a reverse process nothing new would occur in it.

I have dice whit starting temperature of 0 K in vacuum and its displaying number 1 ,after drop it displays number 6 (for example) .
Now if we reverse time, will dice sitting still on surface return to original position (displaying number one ) or it will display different random number ?

The way you stated your question makes it ambiguous. What does "reverse time" mean specifically in this case? Is it different than what we mean when we talk about time reversal symmetry?

If time would be reversed in your example, why wouldn't the dice return to the previous position? After all this is effectively a reverse process nothing new would occur in it.

The problem with this answer is that, as Vanadium50 says above it and Drakkith says below it, no one has any idea what either you or the original poster mean when you talk about " reversing time". There are at least three plausible interpretations of what the original poster means, and the answer is different for each one of the three (which is a nice trick for what looks like a yes/no question with only two possible answers).

So let's hold off on trying to answer the question until we know what is, OK?

Violation of second law of thermodynamics .