It's a function of the particular universe that is being explored.
There really was no such thing as absolute rest; only rest relative to a particular universe.
The experiment with the jar, for example, seemed to indicate that the people in a particular universe did manage to alter their own past.
Assessed correctly, each had its particular place in a particular universe.
It describes the state of matter and geometry everywhere and at every moment in that particular universe.
Here is one of many indications of where the center of his particular universe lies.
"Two, we have no idea why we're connected to this one particular universe."
Of course it was true that once you burned a particular universe you could never go back.
And, I suspect, just like any other galaxy in our particular universe.
In any case, in this particular universe, gold was so common as to be relatively worthless.