"There are no bad ideas. There are only early ideas." - Marc Andreessen
This is one of the startups with enormous potential that I consider worth watching:
General Fusion develops utility-scale fusion power using a new, patent-pending concept based on recent developments in Magnetized Target Fusion (MTF). MTF has been relatively unexplored by the fusion community since the 1970s, but if proven it would provide a practical near-term path to fusion energy. It is the goal of General Fusion to demonstrate and commercialize this new clean, safe, and economical concept by the end of the decade.