I was thinking of the sea vents on the abyssal plains
- if you track the base pairs far enough...
( Invisible Wizard - 12th Level Errorer, Sat 27 May 2023, 10:18, archived)

en.m.wikipedia.org/wiki/Big_Crunch#:~:text=The%20Big%20Crunch%20is%20a,universe%20starting%20with%20another%20Big
(Oooh_cuntroversial Where have I been?, Sat 27 May 2023, 11:16, archived)