The alpha and omega answer to this everywhere is always genius management. But I have no way of assessing that in the way that these big proven investors do. Even if I could get them on a call, I don't trust my ability to judge people to that extent. So my definition is just proof in the pudding: line go up without any FOMO indicators (I never buy anything that the TV and everyone's grandma loves). Margins increasing, ROIC minus WACC returning a good number, nice FCF yield, share price generally outperforming S&P500 for at least 3 years, plus some kind of uniqueness to the business model