“There is no reason for any individual to have a computer in his home.”
“Software comes from heaven when you have good hardware”
In fact, I have heard that the number of copies of it is over a 500 Million copies and it is even been suggested that there is no other program that has more copies installed than the RSA code, more than windows and netscape.
There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe there ever was such a time. There might have been a time when only one man did, because he was the only guy who caught on, before he wrote his paper. But after people read the paper, a lot of people understood the theory of relativity in some way or other, certainly more than twelve. On the other hand, I think I can safely say that nobody understands quantum mechanics.