I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
ARGH! There's no such thing [as writer's block]. Seriously: THERE. IS. NO. SUCH. THING. You know what there is? There's a bunch of problems, creative and otherwise, that can stop you writing. They are not block. They are important skills.