Fusion power Updated +Created
Most promising approaches as of 2020:
Video 1.
Why Private Billions Are Flowing Into Fusion by Bloomberg (2022)
Source.
  • Joint European Torus
  • General Fusion: compress with liquid metal. Intends to demo in JET site.
  • Helion Energy: direct fusion to electricity conversion without steam, direct from magnetic field movements
  • First Light: shoot microscopic objct at a target to crush it so much that fusion happens
It is interesting that there are several different approaches to the problem. This feels a bit like quantum computing's development at the same time, increases hope that at least one will work.