Causality (also referred to as causation and commonly
refers to the relationship between an event (the cause) and a second (later)
event (the effect), where the second event is understood as a consequence of
the first. Please remember that little word: later
Now the Second Law of Thermodynamics, discovered in the
19th century, helps define an arrow of time. This provides an opportunity to
physically describe how causes differ from effects: The sum of effects can
never have lower entropy than the sum of causes.
However, if we could go back in time, we should find that
on the contrary the sum of effects have indeed a lower entropy that the sum of
causes, so the Law of Entropy collapses.
Hume defines causality with these terms:
1. "The cause and effect must be contiguous in space
and time."
2. "The cause must be prior to the effect."
3. "There must be a constant union betwixt the cause
and effect. 'Tis chiefly this quality, that constitutes the relation."
If someone goes back in time he, the effect is prior to
his cause (the parents.)
But there are more fundamental contradictions, because
that presumed jump back in time cannot be isolated from the rest of the
time-space continuum, so all the effects come prior to the causes, which is
totally and absolutely impossible and absurd.
The universe can be seen as an infinite chain of events
following one after another according to the law of cause and effect.
So, those who talk about going back in time are denying
the Universe including themselves of course.
Why? Simply because nobody lives in a personal,
individual time-space continuum. We all
share the same space-time continuum, and consequently, if one individual goes
back in time, the whole Universe goes back with him.
As we , here and now, know this didn’t happen and will
never happen.
