https://hackerpaper.kaipfister.de/p/0804.1126/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=8652999urn:hackerpapers:mention:0804.1126:8652999Mon, 24 Nov 2014 16:10:17 GMT<p>So, if we continue the thought experiment, and say thousands of people have been making observations of the comet for five years and have come to roughly 50% impact probability estimate, with multiple independent methods. And that impact would likely kill maybe a billion people. And you say it is unacceptable for them to advocate doing anything? http://neo.jpl.nasa.gov/risks/a410777.html Current impact risks overview is here. 50% chance of a large object would certainly be unprecedented. http://arxiv.org/pdf/0804.1126.pdf Now, replace the comet watchers with paleoclimate researchers finding…</p><p><a href="https://hackerpaper.kaipfister.de/p/0804.1126/">Paper and discussion history</a>. A mention is not an endorsement.</p>physics.ao-ph