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LoL. And generally you don't get your own special gourmet chef in prison. Though one does hear of powerful mobsters back in the day who managed to accrue a lot of perks while imprisoned. Any convictions will come well after the convention, given the pace of such proceedings, so a jailbird Trump scenario would have no effect on primaries. If the polls @iNow cites are accurate as to likely voters in the general election, then it will be a second Biden term thanks to Independents and suburban gop moderates who are being repelled by TFG. Also a possibility that TFG, if convicted, would be sentenced to house arrest in light of his age and the security issues that prisons present. Not difficult to imagine comedy sketches featuring a White House with Trump strolling around in an electronic ankle bracelet.

Exactly! In fact, that's how you define a symmetry in the action, as a total divergence does not change the "surface" (hypersurface) terms t=t1 and t=t2. You must apply Stoke's theorem first. Perhaps you did, but I didn't have time to check. It is amazing that you're doing this stuff at this point in your life.

I think, I got it. The symmetry validates the equation (3), because this equation makes the variation of Lagrangian a total derivative, and this makes the variation of action vanish: IOW, without the symmetry, we can't go from (4) to (5).

First video is all you need. Merely by asking the question you can infer that this isn’t the consensus, and it confirms that mass warping spacetime is the basic idea of general relativity, which, of course, is the consensus. Time dilation is a consequence of the postulates of relativity. But you can look at the equations and decide what causes what is different. If y= mx, does x cause y or does y cause x? It depends on the framework you use. If you don’t have some mechanism in place you can go either way. So sure, you can interpret things to say time dilation causes gravity. Is it the consensus? No, it’s not. ‘ IMO it’s a game. In SR time dilation is a consequence of motion, but does anyone insist that time dilation causes things to move? No. We still have Newtonian physics as a basis (even though the math is an approximation, valid at low speeds) where something starts moving only if there’s a force on it. Time isn’t a force. In GR things get muddled because gravity isn’t a force..But kinematic time dilation doesn’t cause gravity. The kinematic term is the wrong sign. Satellites at a radial distance of ~9600 km (~3200 km in altitude) have the kinematic and gravitational time dilation cancel. Is there no gravity at that altitude?

Has anyone done this joke yet?

... and this seems quite a bit different, unless you think tarot cards are a modern technology. I also think being concerned about one's health is different than wishing you were rich. In discussion, I'm not a big fan of "Your question is dumb" responses. Why treat someone's concern that way when you can provide some evidence that may help?

The OP evokes in me a sense of déjà vu. But this was from the other forum, so maybe @exchemist or @geordief could weigh in on this topic.