On 26 Aug, 07:21, Tom Roberts wrote in
sci.physics:
Rex wrote:
[...]

We humans have no way of knowing what "really" happens, or which
particular aspects of our theories correspond to reality and which do
not. All we can to is make theories about the world and its behavior,
test them experimentally, and refine them so they become better and
better MODELS of the world. This is known as science.

In our experiments, we measure "time" with clocks, and our theories
model time as what clocks measure. To date that is the best we can do.

As far as "time travel" goes, it is quite easy to "travel" into the
future -- just sit around and wait. As far as we know today, our best
theories indicate it is not possible to "travel" into the past, and
indeed no reliable and reproducible observation of that has ever been made.

Note the PUN on the word "travel".

Tom Roberts

Roberts Roberts your humour is both silly and irrelevant. There is no
idiocy that your brothers time travellers, all of them distinguished
hypnotists in Einstein criminal cult, have not taught. See this for
instance:

http://www.sciam.com/article.cfm?art...c=most_popular

Pentcho Valev