[aruanan]

It can’t take less energy to split water into hydrogen and oxygen than is released when it is recombined (burned). Basic law of physics. You would have perpetual motion if it could be done.

And, supposedly, hydrogen at its ground state cannot be caused to give up huge amounts of energy resulting in fractional ground states. Yet, it can be done.

[DB]

Fusion generates lots of energy from hydrogen. But the hydrogen is no more when it is done.

When you recombine hydrogen with oxygen it returns to water, the exact same amount you started with before you split it. Nothing is consumed other than the energy first used to split the water into hydrogen and oxygen in the first place. The water/hydrogen oxygen cycle is just a means to transport the original energy used to start the cycle. It still isn’t the source of the energy.