Alissa, myself and a lot of other people are able to accept that we (meaning mankind) can't explain everything at this point in time. We may or may not be able to in the future, but at this moment we definitely can't.
Many of the theist posters apparently can't accept that, which is fine and explains the need for a supernatural 'fall back'.
If you believe that we can explain a lot and everything else came from God then there are no more secrets left. As of 2009, mankind has answered every question there is to be answered, one way or the other.
The only problem I can see with the latter view is if you picture all knowledge' as being like a pie (bear with me
). Go back thousands of years, the proportion explained by science was relatively small, the proportion explained by the idea of one or more gods was much larger. The further forward in time you go, the less there is that gets attributed to gods - creationists excepted - and the greater the amount explained by science. I'm not saying that everything is now scientifically explicable, just much more than before. Why should there automatically be a point where no more progress can be made?