Right, hence my 4x margin assumption for my back-of-the-envelope math.

But I still think there's a limit to what any one company can do. The insurance company Allstate could be worth $1T if they end up entering a business producing revolutionary proprietary alternative fuel technology! Obviously, I think Tesla with Musk at the helm has a better chance of creating new markets than GM, Allstate, Exxon, etc., but I realize that there's some limit to what one company can do.

Once your company's market cap gets in the trillion-dollar category, and the total market cap of the US stock market is 50 trillion, you shouldn't expect a 100-bagger.