Yikes, this was sloppy. Plot points were suddenly explained away, others suddenly disappeared. From the books I've read by Michael Crichton, I can't imagine that the original book was nearly this disconnected and disjointed. My guess is that in trimming it down and movie-izing it they lost a lot of the actual science and made it a bit more confusing. Aside from the sloppiness, it wasn't a BAD movie. My siblings and I just found way too many things to make fun of in it. Which probably isn't a good sign.