It seems like demand should have increased when the government sold the bonds and spent the money.
I wonder if there's something about culture and having basic survival needs met. Most economic models assume effectively unlimited long-term demand: as productivity grows and people in existing sectors are thrown out of work, they will find new things to do, and the people who have reaped the financial rewards of productivity growth will find things that they want to spend money on, creating new jobs for the previously unemployed. What if this doesn't happen? What if instead of using money as a means to an end, people use it as the end itself, effectively treating it as a scorecard to be maximized without spending it? And what if on the other end, instead of people finding new ways to obtain money, they opt out of the economy instead, creating alternate games (literally - video games are apparently the main extra-economic outlet) to play. With basic survival needs taken care of by parents, there's no forcing function that makes them participate in the economy. You'd get a reality that looks fairly similar to our actual reality, in Japan and increasingly in other developed areas of the globe.
This line got me thinking about so many things from my own life. You opened my eyes to another view point I had missed for the past 10 years. I am truly thankful to you for posting this comment.
This is pretty much the definition of hyperinflation, so there's a template for what happens here, but not in the developed world.
I suspect that a lot of the demand for Bitcoin is also driven by fear of this scenario. In the world above, the incentive for savers is to simply not play in the established financial world; they'll take their savings and put it in assets that are not rapidly going to zero. If only there were a transferrable currency that's deflationary by design and immune to manipulations of supply & interest rates...
It comes from weakening the perceived future security of the currency, which reduces demand for it; once you monetize fiscal needs, your currency is perceived as one more at risk of being devalued to monetize fiscal needs, which itself devalues it.
[1] https://www.japantimes.co.jp/news/2019/08/23/business/econom...
As crazy as this sounds I think it makes sense - just admit honestly that the situation is fucked up, monetize, generate stagflation and eventual normalization.