An explanation of the observer effect may be that the universe is lazily evaluated at the moment of observation. Outside of that experienced reality, it might as well be all a cloud of latent possibilities, rough outlines and low-res details, enough for a plausible simulation.

You would be living inside docker and wouldn’t know how fast the outside is. Maybe lightspeed is a limit inflicted by the simulation.

That's what a simulated universe running inside Docker would say.

I would consider this if someone was able to demonstrate a way to distinguish these phenomena from altered states of mind (i.e. hallucinations). We know and can demonstrate that the human psyche can easily be manipulated in various ways (psychological manipulation, drugs, magnetic fields, sleep depravation, stress, etc.) to cause such experiences.

Some actual evidence for for "past life regressions" and "astral projection" would be nice...

Yeah, from what I heard, that's how scientology recruits true believers.