Existence

Not trying to involve myself in your on-going misunderstanding, but here's a lecture from Lawrence Krauss about A universe from nothing.In it he explains what is meant by "nothing" and/or "an absence of anything" in physics.- Oni

To provide the video. It falls back to the is there anything north of the north pole question. The question doesn't make sense, nor does your question. If you understood the topology of the universe, like you understand the shape of the earth, you would understand why "outside of the universe" is as nonsensical as asking "what's north of the north pole."But to understand the topology of the universe requires a shitload of schooling, so it's better to just accept that the question is nonsensical and move on to other questions.- Oni Edited by onifre, : No reason given.

Where the satellite's orbit, the curvature of spacetime due to the Earth's mass is less than it is at the Earth's surface. GR predicts that clocks closer to a massive object will seem to tick slower than those located further away.- Oni