Writer's Block and other things that make you stop

So you've finally worked your way through Newton's First Law of Writing (a writer at rest will remain at rest unless acted on by an external force) and gotten started on your writing project. Perhaps you're even flying along at warp speed, when suddenly you hit it.

WRITER'S BLOCK

*Gasp*

But is it really the dreaded "writer's block" or maybe some more common writing hold-ups (like not having enough time to write, being too exhausted to write, or being stuck on a story problem)? SF author Juliette Wade has a great post about what writer's block is NOT. And really, those hold-ups are much less scary than *thunder & lightning* "writer's block." (Was that dramatic enough?)