Popa, I am so glad you brought that up. Somehow, this nonsense is gaining ground among our ranks, that Emuna means to not think it is rational. In other words, not Veyadaata Hayom, only Vehe’emanta Hayom.
The survival of the Jews is actually a great falsifiable proof. Only, I hope they don’t try it again.
As I said back ☞ THEN ☜, there is no take-a-look proof, but there is a bundle of pointers. This is the balance Hashem left, that those who are serious can find Him and those who want to laugh it all off will be able to do so.
Just like we know that in general, Hakol Mishamayim Chutz Meyiras Shamayim, this is true in this regard as well. The mental abilities don’t affect the outcome of your findings as much as your sincerity in finding the true answer.