A) Because people finally ran out of useful and/or interesting things to say ;)
Let's make some additional rules now. Any one-word questions or answers will be removed, because that's just boring. If you're asking "Why?" or "What?" you're seriously spamming. Take a few more seconds to ask something maybe a bit more thought-provoking. I'm not asking people to start writing paragraphs now (although I would love those \o/), but as long as this thread exists here, make it worth someone's time to browse through it.
If your answers aren't making sense to the original question or just aren't answering the question at all, they'll also be removed. No "Who was such-and-such and why did this-and-this-happen?" becoming "Don't know don't care, here's my question." Nor any "Have you ever wondered why this-and-that is found here-and-there?" becoming "The giant cows did it."
If you're not addressing the question with a good answer that took you more than a single minute to come up with and this is obvious, bad things will happen.
You can still have fun with things, but think less pointlessness and more content. :)
Q) Let us assume you met a rudimentary magician. Let us assume he can do five simple tricks - he can pull a rabbit out of his hat, he can make a coin disappear, he can turn the ace of spades into the Joker card, and two others in a similar vein. These are his only tricks and he can't learn any more; he can only do these five. HOWEVER, it turns out he's doing these five tricks with real magic. It's not an illusion; he can actually conjure the bunny out of the ether and he can move the coin through space. He's legitimately magical, but extremely limited in scope and influence.
Would this person be more impressive than Albert Einstein?
[ Edit: Formatting fixed.]