Maybe we can find a way to latch onto that real-world difference and make engines that will climb up the gravity gradient

Sure, and atom interferometry can measure the convergence of falling ytterbium atoms (as a concrete example) while human-scale plumb lines near the surface are not really feasible tools.

The potential of an entire universe inside a point

Your first three paragraphs boil down to the statement : “in some spacetimes, Poincaré recurrence is possible”. Which is totally agreeable, but you’re missing something important: we are not in such a spacetime, because at every infinitesimal point in your infinite spacetime, there the field values have infinite…

** When dealing with infinite space time, everything is certain. Meaning that every possible configuration and/or choice in the universe exists at the same time in different locations AND at the same location in different times

Sure, he went from being plain old Thor Odinson to Thor. Like any number of celebrities who dropped their surnames when they became sufficiently famous. Who calls her Beyoncé Knowles-Carter now? Who uses that Jesus’s full name (or even agrees on exactly what that full name is — even the synoptic gospels differ) ?

Dawn…

I have no issues with Jane ... being the Thunderer. But the idea that Thor is a title is next - level stupid

I wonder if in a galaxy far far away and in her distant future she would have been able to make an an alliance with an Earthling anti-imperialist revolutionary like His Excellency President for Life, Field Marshal Alhaji Dr. Idi Amin Dada, VC, DSO, MC, Conqueror of the British Empire.

No, Deadpool, you’re flirting with Death!

I’m just a hobbyist in this - I enjoy science and physics but it is not my day job or my “field”

“Remember, Legends never die”

Please please please please let that mean we get Wentworth Miller back.

With the present level of technology, all black holes are too far away.

The “gravitational pull” of a black hole — the surface gravity if the event horizon were something you could stand on — can be quite weak. In general it goes roughly as 1/(4M) (and exactly that for a non-rotating spherically symmetrical black hole…

Yes. That riff. However, I’ll just leave this NWOBHM guitar work (starting at 2min55 sec) here.

This story had better end with Batman cross-dressing and singing opera.

Physics as we know it just break down once an event horizon comes into play

The Doctor has bragged on-screen from time to time about his unique conception of time (e.g. in “Time and the Rani”) and since the Cartmel Master Plan era he’s from time to time been shown to be pretending to wing it while following a detailed plan. I was wondering if the Doctor could foresee what happened to Bill, or…

Spacetime tells matter how to move. Matter tells spacetime how to bend

If the whole universe is flat, you might not reach the end either. General relativity suggests you would slow down as you indefinitely surf the wave of expansion

And when I say universe in this respect, it means observable universe. The observable universe is flat. That doesn’t mean the whole universe is flat. It could be round. It’s just that as far as we can see, it’s flat in every direction with no curvature to be observed.