I think it's orthogonal. There are tons of smart people who believe in God. (Knuth has already been mentioned.)
If God wanted, He could make himself apparent to everyone. Clearly that isn't the case; there is room to doubt or to believe no matter how smart or accomplished you are.
The Bible is a very specific version of a creator that the world already gives you enough evidence to disprove ten times. You could argue that the possibility of the Bible being divine is not zero, but it’s less than any epsilons people care about. The reason it endures are cultural, which is clear from its correlations with geography and demographics.
