I recently tried the Abaris life expectancy app and was pleasantly surprised when they estimated I will live to be 96 years old. Even if they are off by 10 years, it's still pretty good. Assuming the last 5 years are a wash due to dementia, I still have many years left to get to all my books.

I would try the app if I were you. I always thought it was more like the late 70s. Maybe we will all have more time than we think! Makes burning a few years on a startup now also seem like an ok idea. Life is long, for many of us - according to the actuaries.