https://hackerpaper.kaipfister.de/p/1603.08001/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=17233103urn:hackerpapers:mention:1603.08001:17233103Mon, 04 Jun 2018 22:14:13 GMT<p>A quick check makes me think that one has fallen quite recently(?): https://arxiv.org/pdf/1202.2539v2.pdf https://en.wikipedia.org/wiki/Time_translation_symmetry https://en.wikipedia.org/wiki/Time_crystal Edit: Also: https://www.reddit.com/r/askscience/comments/52has4/what_is_... https://arxiv.org/pdf/1603.08001v4.pdf Periodic, discrete symmetry holds, continuous is toast. Interesting.. Maybe there should be a rule of thumb (XKCD?) that says for any intuition one may hold, some researcher somewhere is, at ``this&#x27;&#x27; moment (in some measuring system) constructing a contrived situation that will…</p><p><a href="https://hackerpaper.kaipfister.de/p/1603.08001/">Paper and discussion history</a>. A mention is not an endorsement.</p>cond-mat.dis-nnhttps://news.ycombinator.com/item?id=12466452urn:hackerpapers:mention:1603.08001:12466452Fri, 09 Sep 2016 22:19:32 GMT<p>Paper at https://arxiv.org/abs/1603.08001</p><p><a href="https://hackerpaper.kaipfister.de/p/1603.08001/">Paper and discussion history</a>. A mention is not an endorsement.</p>cond-mat.dis-nn