Yep, you got it in one! The world's a lot bigger than people realize during your time. But I'm sure there's a lot we still don't know in my time too.

What's a good story, though... Oh, how about one of the big ones? There was Mr. Mind, this alien worm who could control minds! He and the rest of his species came from outer space and tried to take over the Earth. One of them even got into my brain for a little bit, but I was able to beat him eventually. Thing is, the worms don't do too great in cold temperatures. Once you freeze them, they're pretty much harmless. Not that they haven't gotten out before, but I've still managed to handle it.