Here's a follow up on my last post about fusion. Maybe the hype really is just that - hype with no substance.
This week, Lockheed Martin supposedly managed to achieve a “breakthrough” in nuclear fusion that has gotten a lot of media attention. As Charles Seife points out, it did so “without having built a prototype device that, you know, fuses things on an appreciable scale. It’s a stunning assertion, even by fusion-research standards. But a quick look at the defense contractor’s ambitious plan—a working reactor in five years—already shows the dream fraying around the edges. A year and a half ago, the company promised that fusion was four years away, meaning that the schedule is already slipping. Negative one years of progress in 20 months is, sadly, business as usual for fusion.