Can we talk about this? I just find this so amazing.
I’m gonna assume you all know how black holes work and how not even light can escape.
With this information, we can ascertain that objects in a black hole can only flow in one direction towards the centre of the black hole. This is contrary to the physics of space time outside the black hole where we can move through space in XYZ directions but we can only move through time forward in one direction.
We can imagine a timeline outside the black hole as moving forward away from your day of birth towards your eventual day of death. You cannot move through time in the opposite direction toward your birth, and you cannot avoid your eventual end of your life.
Now let’s compare this to a black hole: since the fabric of space time is so warped past the event horizon, this leaves no escape out of the black hole even for things with high energy, such as light. This means that any objects travelling through the space of the black hole, ie “down” into it’s centre is essentially travelling through time in one direction. The gravitational pull of the mass of the black hole warps space in such a way that the object travelling “down” into it is now travelling “forward” in one direction, similar to travelling though time outside the black hole. it’s space-time is now flipped into “time-space,” where passing the event horizon of the black hole is now a moment in your past that you can’t go back to, much like your birth, and where reaching the centre of the black hole is now an inevitable point in your future that you cannot avoid, much like your death.