> T. Why should it matter to legality that the tech isn't good enough for the goal? Because if it is not good enough, then it is not a market substitute. The

> T. Why should it matter to legality that the tech isn't good enough for the goal? Because if it is not good enough, then it is not a market substitute. The laws cares if it is a market substitute and if there are damages. If it sucks, then there aren't damages, which matters for the 4th factor of fair use.