Very good point. It's like the theory that a collection of people can act in a way far more intelligent than any single one of them.
That's how the Pajamahadeen busted Dan Rather. Buckhead proposed that the letters were fake, and then one person after another took after them on many different tracks. The bad leads were quickly rejected, and in the end Dan lost his job.
I can see how science is similar. Many leads are tried, and dead ends quickly detected, so that the scientific community can accomplish what no single scientist can.
Meanwhile the IDemocrats were teaching the "problems with the faked memos theory".