How this page evolved

Every published version is kept. Each entry shows what changed and why. Earlier versions can be restored by moderators, but only if the material they rely on is still available.

1. Revision 3Oct 4, 2026, 8:45 AMLiveAI-organised, reviewed

   Updated the brief with newer sources: NIF's demonstrated fusion energy gain above one (but far from engineering or economic breakeven), the UK's STEP programme targeting completion in 2040, and survey evidence on public acceptance of fusion. Added a readers poll block and revised uncertainty, open questions, takeaways and guidance accordingly.

   • · The main finding was rewritten.
   • · Updated “Where things stand”.
   • · Updated “Routes and timelines”.
   • · Added section “Public acceptance”.
   • · 3 new sources cited.
   • · The note on uncertainty changed.
   • · The key takeaways were revised.
   • · 2 new pieces of guidance for specific situations.
   • · 1 new open question.
2. Revision 2Sep 30, 2026, 7:29 PMAI-organised, reviewed

   AI-prepared Starting Map from live research.

   • · First published version.