100 years ago, Einstein, Bohr, Edison, H. Ford, Tesla, etc. were alive on the earth. Today, the earth's population is about 4 times greater. There should be all of those great minds alive today times 4. Where are they?
A) Incentive structures prevent the truly brilliant from contributing to great epoch-making discoveries; or
B) The human race getting dumber on a genetic level; or
Any of these answers is quite frightening if you have a long term concern for the human race.