This is something a lot of people already knows, but they are being reluctant of taking any actions about it. 2008 was already enough to tell people that such a thing exists, and it can as well repeat itself.
What do you expect, humans will do after the 2008 subprime mortgage case? Humans often do not have many choices, even the government which should protect the interests of the people is not supporting the people but is a protector of the system. The printing system of money without gold collateral causes a currency as strong as the dollar even if it is weak, besides that the amount of money printed is not balanced with the number of available projects. So that it causes bubbles and economic illusions.
So, it’s up to them to do what they are supposed to do to keep themselves in a good position when it arrives. Since you know that, you should be focusing more on how you can be protecting your wealth, so that you wouldn’t be in a bad condition. Try to invest more in good assets that will help you grow your wealth, and Bitcoin is one of them for sure. There’s no way you will be able to tell the whole world about it. Do the little you can, and that’s it.
Many people still think that subprime mortgages are something that cannot be avoided and cannot be predicted. Whereas subprime mortgages are karma from human moral fragility in managing finances. Start
very loose lending by financial institutions such as banks, investment companies, insurance by offering capital provision in the form of housing loans whose collateral is the property itself (prime-mortgage). This type of credit is usually only given to customers who are able to repay and repay their loans because they have adequate income, have permanent jobs, have positions, and have a good track record in credit payments. But due to the greed of brokers and marketing to get bonuses or fees, then came financial innovations by creating sub-prime-mortgage loans that were given to those who did not have the capacity to pay, for example, laborers, temporary workers, and people who live from mediocre. This credit is known as "NINJA LOAN" or No Income, No Job, and No Asset with a very large risk of default.
The irony is that financial executives are willing to bet on this high risk by trading the sub-prime-mortgage debt on the stock market. The debt securities are secured so that risk can be transferred to other parties such as insurance companies, which in reality the guarantor itself does not have sufficient capital reserves, especially in the form of assets to guarantee it. Like gambling, many parties try to profit from the losses of others by creating financial products such as Credit Default Swaps (CDS). That is an economic activity that is not creating additional wealth, but rather the transfer of wealth from the losers to the winners in the race for the probability of redemption of debt with interest. Brokers on the stock exchange buy shares/debt securities at certain prices hoping for profits from uncertain debt interest in the future. Because the risk of default has been transferred, there is aggression in lending easily so that the volume of debt exceeds the amount or value of assets from the initial debt securities.
Bank interest, bank, and speculative actions are the root of the economic problem.