You are not pessimistic. It's another one of those thing that have been only a few years away from commercialization for 20 years now.
This is happening so often, there must be a name or a law for that.
This is happening so often, there must be a name or a law for that.
[1] http://www.radiolab.org/story/bringing-gamma-back (about treating Alzheimer’s disease with light)
(edit, oops the term Peter Thiel/Tyler Cowen like is "Great Stagnation." See: https://www.youtube.com/watch?v=i_yJTCDU4uE)