Amazing. The question gets linked, gets attention, gets the answers improved (slightly, but it had only been a few minutes), and so a mod rushes in to lock it immediately.
It's ridiculous. This attitude of only allowing questions that could be answered with provable and verifiable fact is going to keep stackexchange from ever moving into non-exact-science territory succesfully.
I'd love a stackexchange site on history, for example. but there's no single question on history that wouldn't get moderated away with moderators like this.
Except "Does the majority of expert believe that <question>?", of course. And yeah, that'll help.