3 ms·

It has worked since over 13 billion BC, just not on Earth.

• pfdietz 3y ago
  The fusion reactions in stars are different than the ones to be used in fusion reactors (or used in bombs).
  • p1mrx 3y ago
    I'm sure stars have smashed together all the isotopes we've considered, at some point or another.
    • pfdietz 3y ago
      In small (sometimes very small) amounts. But the energy producing reactions that power the stars are disjoint from the ones we'd exploit on Earth.