I think it should be made clear, when we answer this sort of (repeating) post, that there are two distinct ways of interpreting (and thus answering) the question:
1) Can I run a Linux/Debian/like thing on my x86 PC (natively) - to get myself familiar with Linux stuff in general?
2) Can I run the Pi system (which is a heavily modified/customized version of stock Debian) on my x86 PC (via some sort of emulator software)?
The answer to both questions is, clearly, "Yes, but in very different ways".
And some folks need to stop being fanboys and see the forest behind the trees.
(One of the best lines I've seen on this board lately)