I'm 45yo, grew up in Poland. I will never forget walking with my father near Polish-Czechoslovakian border when he said to not get too close to the border or I get shot. No one thought it was racist or bigoted to defend your borders against people who try to cross it illegally. It's interesting how drastically this has changed. I still can't say if it's for the better or worse because both approaches have risks and benefits.
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Just a nitpick from a cosmology aficionado. According to many physicists time doesn't really exist, it's just an emergent property of heat and laws of thermodynamics. Imagine a clock, its hands moving because there is energy stored in the clock's mechanisms. Now, if you suddenly drop temperature to absolute zero then atoms in this clock and everywhere around it stop "vibrating" and everything just stops. You will be unable to perceive the flow of time because the system you find yourself in is completely static, there's no change occuring in it. This doesn't apply to relativity, if you're interested so it looks like we are yet to discover the nature of time.