Yes Irrational exuberance lasted additional 4 years. The pendulum of the market is not constrained by law of nature.
Considering that so many people think that Bitcoin is just a worthless magical coin with no real value, I've decided to offer up the deal of the century: I'd sell ET today for just 500 of those stupid little worthless Bitcoins. Yep, you or perhaps someone you know can own a part of financial internet history and become the proud new owner of ET for only 500 of those worthless BTC shitcoins. Spread the word!