Are They Intertwined?

This is basically everything inside that cone is sort of stuff where massive particles can play, right? Yes. And then you have a projective structure is what those massive particles can do or are doing, which one? Can do. Okay. So this conformal structure is looking at what's happening with massless particles in space time,. And the space time we're still looking at it sort of like a block universe. That's right. The causal structure states which of the events can possibly be causally related with each other. At this point, they're not necessarily intertwined, right? yes.