NancyLebovitz comments on Crazy Ideas Thread, Aug. 2015 - Less Wrong

7 Post author: polymathwannabe 11 August 2015 01:24PM

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Comment author: NancyLebovitz 11 August 2015 06:52:15PM 0 points [-]

Fair point-- I was thinking in terms of something more dramatic involving tectonics.

Comment author: polymathwannabe 11 August 2015 08:25:36PM 0 points [-]

Rivers, even underground ones, never run deep enough for tectonics to be involved. The scenario is terrifying.

Comment author: Lumifer 11 August 2015 08:45:27PM 4 points [-]

Rivers, even underground ones, never run deep enough for tectonics to be involved.

Tectonics create features of above-ground landscape which determine the flow (or even existence) of rivers.