data, data, data

Elo Percentiles
how old do you feel?

Here are @robinhanson's recommendations on how to figure out if the medical treatment you're seeking (or you've been recommended) is unnecessary https://t.co/pJ0zGBjCxV
Medical treatment and metrics to assess them by

Must Read.
I need to find more of their letters
Source :@pitdesi https://t.co/WjY98Nym2H
How to rank a business by metrics