> I think the point he's making is that all software licenses (including open source licenses like GPL, MIT, BSD and Apache) are built on copyright law; GP's p

> I think the point he's making is that all software licenses (including open source licenses like GPL, MIT, BSD and Apache) are built on copyright law; GP's point is that 3-clause BSD-licensed software makes such a modest requirement upon licensees that it's functionally equivalent to software in an environment where copyright law doesn't exist. I also assume that means that the GGP is implying that the GPL's "golden rule" requirement is a necessary restriction to ensure a healthy FLOSS ecosystem. Or at least that the FLOSS ecosystem wouldn't be as vibrant if 3-clause BSD were the only type of FLOSS license.