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mdogm t1_ja2vbll wrote

What will really bake your noodle is when you understand the question, "how old is the universe?"

Seriously, if there is no uniform time, how old is anything really? Are there some parts of the universe that are trillions of years old, or others that aren't even a second old?

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whiskeysierra t1_ja2y4t2 wrote

Same with absolute space. If we measure speed relative to something, maybe we should be asking the same for age: "How old relative to whom?"

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gwplayer1 OP t1_ja4a4we wrote

That's a valid point. Supposedly the "Big Bang" was an almost instantaneous expansion but instantaneous relative to what? It's kind of opposite the effect at the event horizon of a black hole where, from the outside perspective (earth), something near the event horizon is slowing down but for the particles perspective, everything appears normal.

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