In that video, the speaker conceptualizes a clock that measures
time by reflections of light. If we consider speed of light as
reference to our time measurement, I guess it is natural to
expect that our time measurements will be warped if we are
traveling at speeds comparable to that of light. I was
wondering, what if if we measure time with something else as
reference? Say, a digital clock, assuming it works under such
extreme speed/acceleration... So, my questions: - Would our time
measurements then be still warped? - I think, even if the
measured times indeed gets warped, is it not just the perceived
time for the traveling twin? Logically, the twins have lived for
the same amount of time (as measured from a digital clock on
earth) and should have grown/aged similar. Why would the twin
who stayed back on earth be aged more? I might be totally wrong,
but I would appreciate if somebody helps me understand where I
went wrong. Thanks for your time.