Quibble: within the Earth's past light cone. Any old [stuff] might be going on in unobservable areas of spacetime, which includes the future.

(However, if I had to put money on it, I know how I would bet.)

"Once a man, riding with Coolidge through Vermont, commented, “See how closely they have shaved those sheep?” “At least on this side,” said the President."

Overall, I was a tiny bit disappointed in the result, but not in the least surprised, and as always seeing the details is just entrancing. Thanks as usual!