You know how President Trump wanted to stiff-arm Cuba by restricting American tourism to the island? It might not work. Recent research suggests that we overestimate how helpful tourism is to economies. If tourists are the best ingredient for a region’s success, then why is nearly a third of the Caribbean poor? Maybe fewer tourists would be a blessing for Cuba. Selfishly, I still hope I get to go to Cuba before they close that border, to see those beautiful old cars and beaches, even if it does mean ruining their economy.