Yeah, and I think it's not about history, it's about mortgage initial payment, which is some% of target property cost.
And the idea that it's bad thing is just stupid. Anyone read about previous housing bubble remembers how people took multiple mortgages because you could let your house for more than you pay for mortgage per month, and as crisis hit, they couldn't repay. It was very much enabled by zero mortgage initial payments.
I hope Ukraine won't just sell technologies, cause there are talks about USA trying to get that for 100b. Not a small number, but I doubt USA would appraise their junk fairly, while these tech could be one of the biggest source of income in the long run.