Try out my quantum mechanics course (and many others on math and science) on Brilliant using the link https://brilliant.org/sabine. You can get started for free, and the first 200 will get 20% off the annual premium subscription. Correction to what I say at 25:08 -- That should have been 100 million Kelvin, not 100! Sorry about that. In this video we survey the biggest and most interesting nuclear fusion startups which want to make nuclear fusion commercially relevant. What are the different approaches, how far along are they, and what are the pros and cons. This video has been in the works for months and it's the longest video we've made so far, almost half an hour, so I hope you have a comfortable seat! Many thanks to Jordi Busqué for helping with this video http://jordibusque.com/ 👉 Transcript and References on Patreon ➜ https://www.patreon.com/Sabine 💌 Support us on Donatebox ➜ https://donorbox.org/swtg 📩 Sign up for my weekly science newsletter. It's free! ➜ https://sabinehossenfelder.com/newsletter/ 🔗 Join this channel to get access to perks ➜ https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join 00:00 Intro 01:35 Nuclear Fusion Pros and Cons 04:37 Approaches to Nuclear Fusion 07:34 Field Confinement, Tokamaks 12:57 Field Confinement, Stellarators 16:19 Field Confinement, Plasma Beams 21:15 Inertial Confinement 24:04 Hybrid Approaches 27:31 Summary 28:20 Learn Physics With Brilliant #science #tech