Yes, of course I believe in the implied invisible. But from a personal standpoint It does not matter because the repercussions are the same either way, unless you can use your magical "throw stuff outside my future lightcone" powers to bring them back. Outside f-lightcone = I can never interact with it.

And if I have to be really nitpicky, current macroscopic physcis does revolve around the observer, but certain things can be agreed upon; such as the hamiltonian, timelike, spacelike and lightlike distances, etc. Saying physics does not revolve aroud me implies that there is a common reference point, which there isn't.

Also, I think we are straying from meaningful discussion.