I was inarticulate then. I wouldnt describe faith as belief in something that you didnt personally prove. I would describe "faith" as something that no one "could" possibly prove. Relativity is a good example. Even if it took decades for the means of testing that hypothesis to be possible. The theory of relativity was at least designed in a way as to be testable eventually.Also I take issue with your characterization that no useful knowledge has been passed on without proof coming before, that flies completely in the face of theoretical branches of science and is provably false (eg relativity, standard model, etc. where pieces were proven by other people decades later).
Religious faith is definitionally not testable....ever. And by design.