Jeff Sonnenfeld, Yale School of Management senior associate dean, said in a recent program on CNBC that investors are relying too much on the capabilities of Tesla (TSLA) CEO Elon Musk. He called TSLA a meme stock and highlighted its high valuation. “This is the biggest meme stock we’ve ever seen. Even at its peak, Amazon was nowhere near this level. The PE on this, well above 200, is just crazy. When you’ve got stocks like Nvidia, the price-earnings ratio is around 25 or 30, and Apple is maybe 35 or 36, ...