Time is something we all understand until we try to explain it to another who doesn’t. As Saint Augustine wrote over eight centuries ago:
“What is time then? If nobody asks me, I know; but if I were desirous to explain it to one that should ask me, plainly I do not know.” (Chadwick, 2008).
Today, time is still in many ways a mystery. Some physicists say that is a dimension, but why then can’t we move back and forward along it, as we do for the dimensions of space? Others say that time itself can change, to flow slower or faster, but what does it change with respect to? Surely not itself, as that seems illogical. This section addresses such questions by reverse engineering time:
QR2.3.1 Time Changes
QR2.3.2 Time Travel
QR2.3.3 Specifying Time
QR2.3.4 Reality is Here Now