I heard about einsteins theory of relativity (or something), like if ur in a different planet vs on earth, one person may grow older faster than other guy? well this still doesn’t make sense to me. the way i see time is that its just a way of keeping count of somethings age. but scifi movies and einsteins theory is like saying time is affected by speed?
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People liked this description in another thread, so let’s try it here.
Have you ever seen one of those [measuring wheels with the roller at the end?](https://www.amazon.ca/Rolatape-RT312M-4-Inch-Single-Measuring/dp/B00609U4WY?ref_=Oct_d_omg_d_3111891011&pd_rd_w=qtiMl&pf_rd_p=46bf791f-b515-48cf-a130-6644a5774fb9&pf_rd_r=B3Y4HEZVWC567V6VCF2P&pd_rd_r=9ae2adc9-0a0b-4b70-9b45-76ad8d8a897c&pd_rd_wg=RVLfy&pd_rd_i=B00609U4WY) You hold it at one end with the roller on the ground and then walk. It’s used for measuring fields and houses and stuff like that.
These normally have a dial or a counter on them to tell you the measurement. As you walk, you can see it turning. When you stop, it stops, and there is your measurement. I can’t find one now, but I’ve seen some that have a face like a clock that counts feet, say 10 or 100, and then when it gets back to the 12 o’clock it bumps the counter.
Those dials look a lot like a clock. The difference is that when you stop walking, it stops. When you stop walking, the clock does not stop. It keeps going.
**That is because you are still moving in the time dimension.**
What does *that* mean? Well here is where we need a toy model. Take a piece of paper and draw a couple of smiley faces on it. Now those two smileys have a certain distance between them, and if you asked them, they might say “five inches”. Now take that paper and lift it into the air. Ask how far they moved. “We didn’t”.
The movement “up” and “down” is completely invisible to them. All they see is the X and Y directions of the paper. They’re 2D. They live in a 3D universe, but that can’t see in that “other direction”, their eyes just don’t work that way.
**You live in a 4D universe.** You *think* you live in a 3D universe because your eyes can’t see in that “other direction”. But we can still *measure* that direction using things that aren’t our eyes. We call those things “clocks”.
So then there’s one mystery remaining. Why are you always moving in this time direction even when you’re sitting still? Because big bang. The big bang is not something that happened just in the 3D world you can see with your eyes, it also happened in that other direction you can’t see. And you’re flying away from the *center of the universe in time* at the rate of one second per second. And that’s what you watch is showing you, your current distance from the center of the universe *in time*.
The idea that different people in different places in the universe might see different time, and even different *rates* of time, should not be surprising. We’re all moving through 4-space in different directions.
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