First, there is only one "world's most profitable" Exxon Mobil. You can't buy 16 of them. Second, oil will run out You missed his point: you can buy 16 Exxons

First, there is only one "world's most profitable" Exxon Mobil. You can't buy 16 of them. Second, oil will run out You missed his point: you can buy 16 Exxons or one Exxon, one Google, one MSFT, one GM, one GS....and so on. The idea was that stocks perform better given that companies are always earning money (at least many of them)