Earlier quoted context omitted.
Wrong. Property taxes mostly bear on land, not capital. Especially in heavily urbanized areas with lots of land value, as we see in CA. Landed property is not "wealth", it's just undue appropriation of something that is created by the community. Land taxes reverse this undue appropriation and let the community that actually created that wealth benefit from it, as it should. It's like the opposite of a wealth tax!
I mean, lots of billionaires also essentially got lucky. DOS and Windows weren't the most glorious software to ever stalk the Earth, they were the operating systems that happened to get popular on cheap hardware. Arguing that Bill Gates created all that wealth that comes with the network effect inherent in software and a homeowner is unduly appropriating community value is really something or other.
So, sure, he was lucky in a way, to be around and read it, but it seems unfair to say he merely appropriated value that belonged to everyone. The advice was worthless to the person giving it away, and everyone else.