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Oct 16, 2019 at 5:23 comment added Gerold Broser What would Einstein say? „In Einstein's book about relativity, he says that his theory predicts that the shape of the universe would be finite but unbounded.
Oct 8, 2019 at 15:00 history tweeted twitter.com/StackAstronomy/status/1181585142457999360
Oct 7, 2019 at 10:04 answer added gandalf61 timeline score: 10
Oct 7, 2019 at 10:03 comment added PM 2Ring Determining whether the universe is finite or not is very hard, as discussed here: astronomy.stackexchange.com/q/32456/16685
Oct 7, 2019 at 0:13 comment added uhoh +1 This is a great question! I added a few examples to illustrate the wide range of (model-based) certainties but I think a good answer will cover that better. "a little" and "a lot" can of course be simultaneously valid since they are subjective relative comparisons, and what the phrase "we know" means can be addressed as well.
Oct 7, 2019 at 0:12 history edited uhoh CC BY-SA 4.0
added 346 characters in body; edited tags
Oct 6, 2019 at 17:08 comment added peterh I think we know very little from the Big Bang.
Oct 6, 2019 at 16:10 review First posts
Oct 6, 2019 at 18:53
Oct 6, 2019 at 16:05 history asked NoSenseEtAl CC BY-SA 4.0