I find that theory fascinating, as well as the one where it would have to be carbon based like us because chemistry.
Then intelligent life would need to be land based because you can’t easily do things requiring heat without an oxygen atmosphere and something to burn
To be space faring, your planet couldn’t have much more gravity than earth, else chemical rockets wouldn’t work
At what point is it usefully generalizing on what life would need vs where are preconceptions limiting your thinking?
alternategait@lemmy.world 21 hours ago
What about using heat from geothermal vents?
nullify3112@lemmy.world 17 hours ago
Thermal vents under water will keep you alive but it won’t be your energy source for industry. Also, how do you invent the steam engine under water on a thermal vent that cannot move around?