Technically speaking we already have « fusion ». The problem is we don’t have « stable fusion » this one will take another 5-6 years. Then we need « positive

Technically speaking we already have « fusion ». The problem is we don’t have « stable fusion » this one will take another 5-6 years. Then we need « positive yielding fusion » today fusion has negative yield... that’s another 5 -10 years at least. Finally we need «commercial scale fusion reactor » like France did with their Nuclear Reactor massive investment from post war to today in order to make cost and delay acceptable. That would be 2040 at least for industrial nuclear fusion. I have no idea what humanity will look like in that timeframe.