> I mean, there isn't any evidence other than heresay

3x leverage on VTI/VOO yields 20% annual return over the past 30 years.

Even you, a passive index fund investor, can do this in your Schwab/Fidelity account.

Now consider algorithmic prop trading firms with 10x, 20x leverage. You do the math.

For reference, most people take 5x leverage on their house (20% down payment).