Universe

In 2010, scientist Lawrence M. Krauss wrote an article1 in the Wall Street Journal in which he argued that since the total amount of energy in our current universe is zero, it follows that the universe originated from nothing. The gist of his argument was this: Let us assume that the universe actually arose from nothing. (Here it is the so-called nothing of scientists, not the nothing of philosophers.) Then the total energy of the universe must be zero, because everything here started from nothing. Amazingly, scientists have also found that the total energy in the present universe is zero.

Almost all physicists who work on quantum gravity state that space-time is emergent, not fundamental. If space-time is emergent, what does it mean? Since space-time could not exist before the emergence of space-time, the emergence of space-time means that there is another layer in the universe below the layer of space-time where there is no space-time, and from which layer space-time has emerged. If two points are in the layer of the universe where space-time is real, there will be some distance between those two points.

In one YouTube comment thread, a person wrote the following:

1) Physicists have shown that the total energy of the universe is zero.
2) SR has shown that mass and energy are equivalent.
3) Again GR has shown that space, time, and matter are so interlinked that there cannot be any spacetime without matter; similarly, there cannot be any matter without spacetime. There is a saying of Einstein on this: "When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter." (Source: Google search)

If it were possible for a human being to be simultaneously present in New York and London, then the distance between these two cities would be zero for that human being. But, for all the other human beings, this distance would remain the same as before.