Debt is the problem. The whole debt based economy is unsustainable, but how do we reset things without depriving the creditors from their reimbursements, the savers from their savings, and so forth?
At the end of the day, central banks are the ultimate creditors and created a system where they control all the wealth of the planet. So who can we take them on?
Cryptocurrency, in theory, was a way to bypass them. But in reality they quickly realized that threat and started manipulating them, just like they manipulate the value of precious metals, so they can keep issuing fiat currency.
By the way, I am the twit who asked Tabs for solutions
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