[dogscoff]

whats to stop us from doing anything? - {edit out list of utopian applications for limitless energy}

Greed, that's what. Don't get me wrong, the world needs fusion, but if/when it comes it will simply become something else for the powers that be to hoard for themselves.

We already have the capacity to eliminate starvation from this world, and probably most disease, drought and countless other sufferings as well, but we lack the will. There is too much invested in the status quo. New technology is a good thing, but it will never save the world. Only a fundamental change in the world's power structures and/or human nature can do that.

And just imagine the weapons that could be built by a nation wielding a limitless energy source. They'd make today's nukes look like firecrackers