If you're a fan of Ethereum, then you might have had a visceral reaction when you read the title of this post. Maybe that's why you clicked on it in the first place. On its face, "Ethereum Stops Working" is a statement that seems to imply a cataclysmic failure that would wipe out a multi-billion dollar market and an entire industry. It's a statement we'd hope to never read in a news headline. But, it's a technically true statement about the transition away from using Proof-of-Work.