And in six months, he'll claim to have fixed the "nagging issues on the engineering side of things," but in the course of the fix he'll have decided that simply hooking it up to a boiler wouldn't be the most efficient way possible to use the power output, so he'll have come up with a proposal for direct generation of electricity that requires some different "nagging issues on the engineering side of things" to be fixed. And six months after that he'll conveniently forget that the heat source and power density were proven and will confidently announce that he's really close to producing a cell that can run continuously for more than a second, yet again. We know how the "jam tomorrow" con works; it's been on a continuous loop for the last thirty years.
Dave