[Question] Investment is a useful societal mechanism for getting new things made. Stock trading shares some functionality with investment, but seems very very inefficient, at that?

Jack Bogle, the creator of the first index fund, says

The stock market has nothing—n-o-t-h-i-n-g—to do with the allocation of capital. All it means is that if you’re buying General Motors stock, say, someone else is selling it to you. Capital isn’t allocated—the ownership just changes. I may be an investor, you may be a speculator. But no capital goes anywhere. This is basically a closed system. You have new IPOs and whatnot, but they’re very small compared to this vast thing we call a market

My response to this has always been… if that’s true, what is the point in all of this? It’s a mechanism that predicts the success of companies, but plays only a very small role in investment? Could we get that money to do something better, then?