To run further with the analogy: it can go years without being diagnosed. Right now Facebook is in the 'I feel fine, I don't need to go to the doctor' phase.

To run further with the analogy: it can go years without being diagnosed. Right now Facebook is in the 'I feel fine, I don't need to go to the doctor' phase. By the time the market starts penalizing a company things are usually on the decline, if not in free fall.