"Does "sure" mean 100% confidence? If so, is thi..."

https://arbital.com/p/988

by Dewi Morgan Sep 25 2018


So \- from a Bayesian standpoint \- after explaining Mercury's orbital precession, we can't be sure Einstein's gravitation is correct, but we can be sure that Newton's gravitation is wrong\.

Does "sure" mean 100% confidence? If so, is this a correct statement?

Or would it be more correct to say: