What is the widest disconnect between price and fundamentals in the market right now?

I'm screening for valuation gaps on the short side of credibility, not stocks that are merely expensive, but ones where the current price seems to require a decade of flawless execution just to grow into itself. To keep answers useful, two ground rules: 1. Name the stock and the multiple it's trading at. 2. State what has to go perfectly over the next 5–10 years for today's price to be justified. If you think the gap is in a whole sector rather than a single name, make the case.