In the same way that a non-dividend paying stock (such as BRK) is a Ponzi Scheme. Furthermore, there is an active secondary market for shares in Palantir. It'

In the same way that a non-dividend paying stock (such as BRK) is a Ponzi Scheme. Furthermore, there is an active secondary market for shares in Palantir. It's obviously far less liquid than the stock of other similarly sized public companies, but it's still an equity investment.