Number 21. Become a psychic like our professor and write Twenty One Lessons of the Twentieth Century for Trump’s America, taking into account that he already knows which lessons Trump’s America will need to learn and Trump hasn’t even been sworn in. LOL
At least his book got good reviews in Amazon, just don’t start from the worst to the best. I used to write reviews there, and learned to start from worse to best before deciding what to buy. People tend to buy what they wish to read. BUT that’s just me.