That is a good question. I believe Jesus answered that question when He said that if certain people saw the truth He would have to heal them. He said that blessed are your eyes because you can see the truth. That doesn't mean that they are lost, look at the great number of people that make it to heaven that lived in rightousness that don't know Jesus. It is up to God to show a man HEB. 13.8.
Concerning the thought about encripted computer code(the author is not a Christain I believe) but wrote a really good book for the Science type. It is called 'Bible Code.' From what I understand the goverment of Israel laughed at him when in his discovery in the code that their prime minister would be killed. But now is taking a good interested in the book now.