I shifted from "investing" to "spending" when I got to lottery tickets.
The point was to show that while high risks with poor expected returns have their place, that place is having a flutter, not investing your life savings.
A Ponzi scheme is no more than a dishonest lottery where the last ones in are the losers.
Even if you (not YOU you, "you the investors" you) refuse to recognise this, you've got to recognise the higher than normal risk involved and treat the investment appropriately. 4% per month (60%pa) sounds great until you realise that even with a 75% chance it's real (hah!) it's not actually a particularly outstanding deal.
Frankly it's more like betting your life savings on a single spin of a roulette wheel because you think the wheel is slightly off and gives you a 2 in 3 chance of doubling your money. Madness! Except that in this case, you're wrong, and in fact the house takes all off of everyone who bet after last year! Folly!