I'm bored. Make a single point about why zombies are or are not realistic to you and I'll try to counterpoint. Deal?

I'll try to answer within 24 hours of your comment.

It doesn't have to be SoD zeds we are talking about, (though I would prefer,) but if you're thinking about a specific type of zombies, please cite your inspiration so I can try to use examples from the same media.

Hopefully I won't be reaching too much, but I think it could be funny to try and justify against any point you guys and gals make.