I think my parents and I both exist in the past and are long dead. The truth revealed by general relativity is that there is no present, no future.
I wonder why they call the Einsteinian universe "spacetime" then? Could it have something to do with the way both time and space must be relative ─ you could almost say flexible ─ to handle the absolute limit imposed by c, do you think?
The illusion that we experience the present is fabulous. Everything is past.
What is your evidence for your proposition that the evidence of reality that we receive through our senses is an "illusion"? If it's an illusion, then your parents must be illusory. If it's an illusion, why do you need air? Water? Food? Shelter? Society? Why can't you just continue without them?
This brings into question our existence, since the idea of existence involves a moment of time or period of time. You exist at a particular moment or for a period of time.
Yes, our universe exists for each of us in the Now, and I think of the Now as like the foam on the breaking wave of time.
This goes away if all is past.
Both memory and anticipation, the known past and the expected future, exist only in the Now, but time is demonstrated by change, which is impossible without time. I say that change is not illusory, hence time is not illusory.
That is one way of showing that existence is not all that it seems. Another is to consider the discoveries made in subatomics. There is nothing but energy patterns when scientists try to find particles that make up the components of atoms. Its as if there isn't anything there.
You just said energy is there. And implicitly, that energy operates in patterns. It's not as mysterious as you say.
The components appear to be energy that can appear and disappear.
Energy has been regarded as a constant. Whether the expansion of the universe brings energy into being as the interstellar spaces stretch, or whether the universe's energy is being attenuated instead or whether some other physics is required is (as I understand it) still a work in progress.
consider the irony that in a universe driven by cause and effect we cannot find an original cause.
Once we get into quantum theory we have to accept that certain parts of physics don't operate by classical cause>effect, so have to be dealt with statistically. Examples are the emission of any particular particle in the course of radioactive decay; and the quantum phenomena that generate the Casimir effect.
I find no reason in any of that to cease believing that I exist and that a world exists external to me aka reality.
And the fact that you post here seems to demonstrate that you actually agree.