Add cold fusion to the list. That said, breakthroughs that would be phenomenally beneficial and aren't prohibited by physics are worth throwing money at decade

Add cold fusion to the list. That said, breakthroughs that would be phenomenally beneficial and aren't prohibited by physics are worth throwing money at decade after decade due to the risk/reward ratio. It's like playing the lottery where the odds are a million to one against you, but he payout if you win is a billion times your ticket cost. You probably won't win but you would be stupid not to try.