Someone forgot to model growth in the value of the asset, and/or putting the wealth to use. A wealth tax is, to an approximation, the equivalent of the "management fee" that an ETF charges, but with the revenues going to the government. If you have a bucket of money that isn't doing anything, then what value does it actually bring to the economy? Penalizing static value seems almost reasonable.
> Someone forgot to model growth in the value of the asset, and/or putting the wealth to use. It's surprisingly not different. If you have an asset that is dormant, is $100, and you tax it with 1% for 20 years, you get to $81.79 by calculating 100 0.99^20. Now suppose instead, your asset grows by 10% a year, and you have no tax. That asset grows to 100 1.10^20 = $672 Now suppose that prior to the investment each year…
> When you just store, you don't benefit, and taking it is a purely negative experience. Many people are willing to share part of their new earnings. Few are willing to give up something that has always belonged to them.
That's a real stretch when just a sentence earlier you talked about earned benefits and taxation of those benefits. Storage is just the accumulation of earned benefits beyond your spending habits. Value isn't created in a vacuum nor is it used in one. And current taxation doesn't preclude future taxation, it's why us common folk are told to do any of our retirement funding that we can as pre-tax, since who's to say something that is taxed today (and is expressly stated as not being taxable in the future) won't be taxed again later on appreciated or total value. So, by this alone, the government saying taxes now, and deferred taxes later if that valuation meets certain thresholds isn't something that the government can't or even shouldn't do.
And, in many cases, the tax wouldn't apply to startups or their founders unless they're already sitting on multiple tens of millions of static personal valuation; which is where this whole argument really breaks down, and shows its disingenuous colors. When someone like PG talks about these wealth tax valuations in general terms of percentages, many of us are still thinking on OUR terms, which means we're thinking on "normie" scales of 10s or 100s of thousands, or maybe a couple million, where a 1% drop in valuation YoY would make a significant dent in what we can and can't do; when a wealth tax is floated (at least in the US) it's looking at $10M+ in static assets at the individual level, and applies to a wealth class that only a small percentage of people can actually comprehend. And, when a wealth tax is floated in the US, it also has discussions around non-realized asset valuation (such as small businesses, start-ups, etc) and what classes of assets contribute to the total value of an individual wealth tax.
Applying a wealth tax in a general way like how PG has done it is a bit disingenuous, not wrong; but is prone to personal wealth view biases. It becomes even more obvious when we take your example and put it towards something that would actually be taxed... $100M; which you end up with $81M for static assets or $550M instead of $672M in PERSONAL assets. Most only think of numbers in these terms if the "win the lottery" so who in the general public thinks the difference of $122M over a lifetime of nearly 3/4 of a billion dollars in wealth (not earnings, but accumulated valuation) isn't a bit of a "whatever," they'll pay more in taxes on that Mega Millions winner and won't bat an eye. (this also works for the usual lower bound as well, $10M, but $100M is guaranteed to be included in any of the recently floated wealth taxes).