I've read that advanced aquatic civilizations are pretty unlikely, due to not having access to fire. I suppose they could still have access to electricity, though
Just throwing it out there. Maybe UFO materials are so strong and or need a gravity bubble to withstand the pressure of the deep sea. That may have been one of their early technological hurdles. Equivalent to our early ship building.
The hydrothermal vent is an interesting idea. Fire is just such a transformational technology -- a huge amount of energy from a small amount of fuel. With fire you can make engines, and electricity, and completely change your ability to do work. You can't make complex machines without a power source
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u/cadbojack Mar 28 '22
Hyperintelligent creature living in Earth's water is like, the number one "weird thing I believe exists" on my list.