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Why aren't there any scifi movies where humans become anaerobic again?

Like our microbial ancestors. The backstory would be that ox...
greedy scourge upon the earth home
  01/06/26
Waterworld
lake spectacular roommate
  01/06/26
Those folks became aquatic but they were still aerobic. Anae...
greedy scourge upon the earth home
  01/06/26


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Date: January 6th, 2026 6:58 PM
Author: greedy scourge upon the earth home

Like our microbial ancestors. The backstory would be that oxygen levels plummeted and we had to adapt to survive, but we already had this capability leftover from 3 billion years ago. Among other things it would be very hard to start fires in this environment but there'd also be much less risk of electrical fire. Pretty safe to assume all fuel-burning engines just wouldn't work without supplemental oxygen

(http://www.autoadmit.com/thread.php?thread_id=5818112&forum_id=2Vannesa#49567646)



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Date: January 6th, 2026 7:12 PM
Author: lake spectacular roommate

Waterworld

(http://www.autoadmit.com/thread.php?thread_id=5818112&forum_id=2Vannesa#49567666)



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Date: January 6th, 2026 7:14 PM
Author: greedy scourge upon the earth home

Those folks became aquatic but they were still aerobic. Anaerobic life is more likely to live off thermal vents and not have gills IMO.

(http://www.autoadmit.com/thread.php?thread_id=5818112&forum_id=2Vannesa#49567669)