https://hackerpaper.kaipfister.de/p/1409.5998/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=37974887urn:hackerpapers:mention:1409.5998:37974887Sun, 22 Oct 2023 12:46:11 GMT<p>&gt;&#x27;One of the most fundamental philosophical questions is about the nature of time, precisely because all of our &quot;laws&quot; of physics are time reversible&#x27; Many of our theories are, but the thing is we have several direct observations of time reversal symmetry violation (below), independent of the experimental demonstrations of CP violation which also imply T-Symmetry violation. https://arxiv.org/abs/1409.5998 https://pubs.aip.org/physicstoday/article-abstract/52/2/19/4...</p><p><a href="https://hackerpaper.kaipfister.de/p/1409.5998/">Paper and discussion history</a>. A mention is not an endorsement.</p>hep-ex