Comments by "Pete Venuti" (@petevenuti7355) on "The Institute of Art and Ideas" channel.

  1. . . Instead of saying the universe can't be a black hole because the only future would be the singularity, perhaps say instead that time is the way it is (a constrained dimension only able to go in one direction) exactly because the universe is a black hole! It makes sense to me, Does it make sense to you? Also , how would you express it mathematically? (Because that math is over my head)
    1
  2. @axle.student  I appreciate that you're able to have the flexibility of point of view! Many in academia tend to think they have a third person point of view , when in fact all that any of us really have is a first person point of view. To be able able to put your first person point of view in a "what if" scenario like that is actually a bit of a talent that you probably take for granted. That said, if you imagine the universe being the inside of a black hole like we were just discussing, if you assume that time is an actual physical spatial 4th dimension, and that there is this black hole in that universe, and that black hole is our universe, and that fourth dimension has been transformed into time inside that black hole, yes I do believe we would have that inverted perspective like what we do actually observe our universe to be. But if that's the case time is neither of those two options. Something in the past would be something that fell into the black hole after you, and future would be something that fell in before you, and being is that you can never "see" in those directions(because information can never travel in the outward direction and hence why that dimension is perceived as time) , that means if you could travel to the past it wouldn't be your past. The construct of time is a physical dimension would be a completely separate thing than the emergent property that gives us the perception of time because of increasing entropy and memory. You would still get the effects of general relativity because any travel in one of the three orthogonal dimensions , that would take away from the forward velocity in the time direction, a vector component where your total velocity is always the speed of light, but only light travels in the same direction as time. If gravity works across time in this construct, (as it seems likely it would if it could have formed a four-dimensional black hole) it would explain dark matter as well, any mass that was in the future or past in a physical time dimension would influence us in the present. I just wish I knew somebody who could help me formulate this concept mathematically so it could be taken seriously! As for the proverbial singularity , I think it's more like a higher dimensional Gabriel's horn. Also that the event horizon is like a mathematical discontinuity.
    1