HN July 4th thread Scuba diver accidentally discovers prehistoric industrial complex in Mexico [1], the original paper [2], and the spectacular underwater footage included in a CBC News video [3] via joachimma [4]. Yesterday’s HN thread [5].
[1] https://news.ycombinator.com/item?id=23730884
[2] https://advances.sciencemag.org/content/6/27/eaba1219.full
[3] https://www.cbc.ca/player/play/1760020035814/