And yes, I know technically we already have achieved it.I'm taking about sustained and industrialised fusion though. It has been predicted to happen almost every decade since the 70's. Yet here we are, fusionless. It's frustrating because the possibilities of fusion open up a lot for the world. All energy would be carbon neutral and safe. Nuclear fusion turns hydrogen into helium so there are no harmful radioactive substances that are given off that will potentially give cancer. Seems perfect but yet still out of reach.