Even if this would work without any complications from increasing atmospheric pressure, electrolyzing 0.5% of the ocean with present-day technology would take more than 200,000 years. That’s plenty of time to invent new tech to speed it up, but even if some miracle invention next week sped it up by 2 orders of magnitude, it would still take more than 2000 years. So in feasibility terms I would rate this concept lower than building space elevators to save rocket fuel.
Cool sci-fi concept tho - let’s get Arnold on it right away!
Even if this would work without any complications from increasing atmospheric pressure, electrolyzing 0.5% of the ocean with present-day technology would take more than 200,000 years. That’s plenty of time to invent new tech to speed it up, but even if some miracle invention next week sped it up by 2 orders of magnitude, it would still take more than 2000 years. So in feasibility terms I would rate this concept lower than building space elevators to save rocket fuel.
Cool sci-fi concept tho - let’s get Arnold on it right away!