The fundamental problem for us to understand is that simultaneity, and thus present, is impossible. Since distance in space also is a separation in time, simultaneity requires zero distance, meaning that simultaneity must be single. No two events can thus be simultaneous.
One can imagine a point in space between two “simultaneous” events where these events indeed are simultaneous, but since this point in space is separated from the two points in space, it is also separated from them in time (ie, is not simultaneous). No matter how close we place the two events, the point in space between them is separated from them in time until we fuse them.
Simultaneity (ie, present) is thus just an illusion. Instead, there are two aspects of simultaneity: over time and in time, whereof over time is relative to position in space.
This conclusion is totally consistent with every fact, including “the axiom of choice”. None-the-less, it is possible to assert that matters are the other way around, ie, that simultaneity (ie, present) is a fact, like realists as cladists and particle physicists do, but this assertion is inconsistent, actually paradoxically contradictory. The practical problem with it is to explain away the fact that time is relative to speed in space, because it is impossible to explain away facts.
Fact is thus simply that realists, like cladists and particle physicists, are wrong. Never will they thus find neither “the tree of life” nor “Higgs particle”. They may come very close, like “thinking that they have got it”, but will never find it. The reason is thus that their ideas are illusions created by a fundamental wrong-thinking.