Man, as a young programmer coming up I really looked up to Paul Graham, but now as a seasoned vet in the industry, it's remarkable (and disappointing) to see him publish an article based on such a false equivalency. I mean this level of missing the forest-for-the-trees is the type of thing that routinely prevents senior engineers from getting promoted to staff because they're pedantically fixated on the wrong details. And that's on top of failing to read the room as to why people are even calling for a wealth tax in the first place.

The more obvious reason to not tax wealth is because it's hard to measure, and if you try to do it you will incentivize hiding it. Meanwhile, there are obvious obvious loopholes that the ultra-wealthy enjoy which could be reasonably closed. Namely, close the buy-borrow-die loophole, don't allow step-up basis for inherited wealth, and tax capital gains at least as much as income. Now people with a lot of money can afford to fund a lot of premium think tanks to come up with fancy economic reasoning why those ideas are Really Bad™, but at this point it's clear that's bullshit propaganda and the unintended consequences are exceedingly unlikely to be worse than the current unchecked consolidation of wealth and power enabled by the current loopholes.