technology

Just not running out of fuel and not that limitless really. It's just another reactor boiling water. Likely scaled to 1.9GW for the biggest steam turbines and transmission infrastructure available today to be remotely economical. Would still be another painstaking massive civic engineering project, access to large bodies of water that isn't too hot because of climate change and alot more electricity inputs then starting a fission reaction.

Unless you are swindling venture capitalists. You need two fuels - deuterium and tritium. Deuterium is extremly ambudent and energy dense but tritium can only be produced in large quantities from lithium. David MacKay's "Lithium Fusion" feels like a more honest representation. That author's own estimate is 10KWh/d of sustainable energy per person. I hope somebody can challenge this because comparing it with 2008 consumption that's 1/6th of what the author estimates is required under best circumstances for improvements in efficiency that still have to be realised.

edit: kind of disingenuous of me when the figures improve from lithium sea mining. I just have a knee jerk reaction to pop science journalism. I also think it's sad we held out for a the holy grail of fusion or le thorium epic bacon molten salt reactors when the PWR was perfectly fine.