Boundless optimism seems inappropriate anywhere outside of religion, but ridiculous mind-blowing optimism, at least, seems to me and many others warranted by recent advances in biotech.
Not for her, though. There was that pesky fact that blood tests already exist, and people were going to compare her results to theirs. And "ridiculous mind-blowing optimism" led to a lot of people losing their money, people who now appear on the government's witness list for her trial.
And then we have President Clinton announcing that the success of the Human Genome Project was going to lead to countless breakthroughs in medicine. I've taken a bunch of UCSC Extension classes in bio, so I know it's certainly helped. But it wasn't like Moore's Law kicked in all of a sudden.
There's certainly progress, you're right. But doing things on a gigantic scale takes gigantic amounts of time.