I recently heard an interesting radio discussion of financial realities affecting the electric-vehicle business. Businesses do not emerge from nothing. They are the joining of a business plan with, in this case, money from venture capitalists. In the normal course of affairs, venture capitalists expect to cash out when the companies they have funded "go public," making an IPO, or Initial Public Offering, on the stock market. The current trouble is that some of these companies that had planned IPOs have now withdrawn them. Why? It may sound strange in a world that nods and smiles at vague concepts such as sustainability or "green-ness," but potential investors want to make money. These companies are not doing that. Only Tesla is going ahead with its IPO.