Nuclear Fusion — The Dream of Unlimited Energy
Understanding the Complex: Why has fusion been 'the energy source of the future' for 70 years — and why might this time be different? 11 lessons, ~150 minutes, free.
Nuclear Fusion — The Dream of Unlimited Energy
All 11 lessons in order.
What's This Actually About?
Hook: the moment NIF achieved ignition in December 2022 — and why that milestone is still decades from a power plant.
Why Should I Care?
Three reasons fusion matters beyond physics labs: climate neutrality, baseload power, and 70 years of promises worth examining.
The Basics You Need
Prerequisites: fusion vs. fission, the D-T reaction, plasma, the Lawson criterion. Anchor: ITER introduced.
How Nuclear Fusion Actually Works
D+T → He4 + neutron. 150 million degrees. The Lawson criterion. Magnetic confinement: tokamak principle. ITER's technical parameters.
Two Main Approaches and the Private Challengers
Tokamak vs. stellarator (Wendelstein 7-X). Inertial confinement (NIF). Private approaches: CFS, Helion, TAE. Engineering hurdles.
Where Do We Actually Stand? ITER, NIF, Private Fusion
ITER timeline (realistic). NIF 2022: what was actually measured. Private fusion promises vs. results. What 'net energy' means scientifically, engineering-wise, and commercially.
Who's Doing This? Why? Who's Paying?
Sam Altman (OpenAI + Helion), Mumgaard/Whyte (CFS/MIT), Barabaschi (ITER), Binderbauer (TAE). Wendelstein 7-X. ITER costs, VC billions, Microsoft PPA. As of May 2026.
What's Contested? What Don't We Know?
Four controversies: Will ITER deliver? Is private fusion timeline real? Is fusion worth the opportunity cost? What did NIF 2022 prove?
What's Next?
Five milestones on the path to commercial fusion.
What If...?
Calibrated speculation ~50/50 — after the '30 years' honest pessimism opener that comes first.
What Do You Take Away?
Six core ideas. Reading list. Cross-links to Theory of Everything and CRISPR. Why you shouldn't trust us blindly.