Comments by "RB 70" (@RB-bd5tz) on "Time is an Illusion, And These Physicists Say They Know How It Works" video.

  1.  @voxsvoxs4261  In velocity calculations, we measure the motion of one thing not against time itself, but relative to the motion of another thing whose motion is regular. If a car travels 100 km and the minute hand of a watch goes from 12 back to 12 in the same time (an event which we define as an "hour"), we say the car is going 100 km/h. Really, they are both objects that are moving because some force compels them to, and we notice this change, and that's what we call "time". "Time" is just our word for our perception of change. There is no change in a photo, therefore, no time. If we visit the town we grew up in 30 years later and nothing has changed, we say "there has been no passage of time here." If every object in the universe stopped moving relative to all others - i.e., no velocity - there would be no "time."
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