There are a lot of things that senior experienced experts who are planning their retirement can train their juniors using videos

As on today there are no much options to do this easily

Specialised territories can be created in specialised areas of science , like genomics, nanotechnology etc where the experts share their quality video tutorials accessible by juniors across the globe and these experts gets access to some free satoshis in exchange of their aquired knowledge which can later protect them from hyperinflating dollar