So, you could condense my knowledge of physics to an index card, but here we go...time seems like it&#x27;s always based on the measurement of a regular thing. Say the oscillation of a quartz crystal. So we have no proof there of time, just that certain phenomena can be very regular in intervals&#x2F;cycles.<p>I&#x27;ve heard things like, &quot;if you go the speed of light, or at least really fast, time will move differently.&quot; But that seems like it would be a side effect of that local system moving at a rate that interferes with its physical interaction relative to what we consider normal.<p>There are probably tons of holes in that. But my point is that we tend to think of time almost as an invisible &quot;thing&quot;, and I really have trouble wrapping my brain around that. It just feels like things happen and we call it time, but really its ordered intervals of effects.