@mesid asked in a now dead comment: > What does speed of causality mean? And how... | Hacker News

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		dkersten on Sept 12, 2019 \| parent \| context \| favorite \| on: Water found on a potentially life-friendly alien p... @mesid asked in a now dead comment: > What does speed of causality mean? And how is light so close to that? Take a look at this video by PBS Space Time on the topic: https://www.youtube.com/watch?v=msVuCEs8Ydo You may need to go down the rabbit hole and watch the earlier videos on relativity and related topics.

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