“water ignites”
Not on this Earth, it doesn’t! The writer tried to sneak that by. Didn’t work.
It takes energy to create this “water-based solid fuel.” No matter how the system works, there will be less energy available to do useful work, than was put into the system.
Sorry, but water doesn’t burn.
>Sorry, but water doesn’t burn.
It will in an atmosphere of chlorine or fluorine ;-)
(which would take a lot of energy to create - so nobody get excited)