I hear you. I don't find the argument that robust given that everyone is limited by their time - car salesman included - but I hear you.

Agree that more data helps. For a headline I'd rather see revenue than margin or profit, as those are more subjective (or net revenue, if you're selling goods).

Unscalable business? Obviously a subjective take but, to me, that means anything where you're charging by the hour (e.g. consulting).