Timeline for Could the unobservable universe have curvature (be spherical)?
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| Apr 13, 2017 at 12:39 | history | edited | CommunityBot |
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| Jun 20, 2012 at 4:48 | comment | added | tachyonicbrane | We can't observe the big bang either. Why do we think it's true (or at least allowed to be talked about?). It's because it can have observational consequences on what we do observe. You could infer that the cosmic background radiation is evidence of the big bang. But if the scientists who developed the BBT weren't allowed to do so because people told them a Big Bang would never be experimentally verifiable we wouldn't know how to interpret the CMB, heck we'd probably never launch the detector that detected it! | |
| Apr 15, 2012 at 6:31 | comment | added | Ron Maimon | It is annoying that people feel comfortable talking about things that are in-principle unobservable, like the stuff beyond the cosmological horizon. You might as well talk about life after death and the existence of beelzebub. | |
| Apr 10, 2012 at 11:32 | history | answered | John Rennie | CC BY-SA 3.0 |