While the melodrama at Twitter is drawing all the attention, Elon Musk may have bigger problems at Tesla, Inc. (TSLA) whose stock price decline seems to be accelerating faster than one of his out-of-control autopilot driven vehicles.

Since the beginning of October, TSLA has dropped from just over $300/share to just under $170/share where it was trading at noon today. This drops the market cap to around $535 billion, 33x EBITDA and 52x earnings assuming one believes TSLA’s financial statements which are, to put it politely, questionable in their accuracy. Regardless of precisely how much cash flow TSLA generates, it still trades at an unsustainable valuation for an automobile company or a tech company.