/sci/ - Science & Math

>>15893201
The reason is because time is moving at different speeds all over the universe. The speed that time moves is due to how much gravity there is in some area of space, which is due to how much mass there is in that same area. Time is moving at a certain rate for us here on earth, but if you were to fly to a black hole and sit just outside it there would be much more gravity so time would move much slower. We would both still be on the same timeline though, there's only one timeline

You can imagine it like the gas particles in picrel. Some are moving faster than others. In the picture it's due to them having different velocities, but gravity has the same effect, not on their velocity but on their relative movement. So you can imagine them having the same local velocity but there's different amounts of gravity in different areas of the image. About your question, gravity is so high and time is so slow inside a black hole that it's pretty much at a standstill, with it being actually at a standstill in the singularity. And because time is moving extremely slow for someone inside the black hole, their biology is also moving extremely slow. This makes it so what they perceive is that things are actually moving at a normal speed and things outside the black hole are moving really fast