I know it isn't as funny this way, but most of the methane comes out of the cows' mouth. It's science.
Wow...I really enjoyed this. Rutili is an amazing storyteller.
How do you become an engineer or nurse or physician with online classes?
The higher ed industry is built on selling high profit, low value (in a strict vocational sense) degrees in humanities, social sciences, education, and business. That's what you see in the chart. But some of those profits are used to subsidize less profitable degree programs in engineering and hard sciences.
Most of your doctors and civil engineers and nurses are produced by the non-elite institutions highlighted here. Sure the system is in trouble. But I don't think Khan Academy can train a new generation of people with the technical skills to replace the retiring doctors, engineers, and scientists society needs either.