Quantum physics is weird. Like, really weird. So weird that sometimes it's hard to tell if a cat is in your lap or not.
It's all about many-worlds interpretation, man. You see, in the quantum realm, there's no such thing as "your lap". It's more like "all possible laps" or "none of the above laps".
Don't worry, though. If you're feeling empty-lap-ed, just relax and remember that the probability of a cat being in your lap is always 50/50, plus or minus 3.
But wait, what's that I hear? *thunk* Ah, it's just my neighbor's cat, Mr. Meowzard, who likes to take a nap on my couch. Not in my lap. Just... coincidentally.
Anyway, read up on this if you want to understand more about the quantum cat-napping paradox.