Remember the financial crisis in 2008 when banks stopped customers from withdrawing funds? Then drip feeding tiny amounts to customers via ATMs. This is going to happen again, this time it will be worse.
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If it happens again as what you said then cash should be the priority, not crypto. In a financial crisis cash is the king, we must hold cash because we use it to buy stuffs everyday. We can hold USD and gold as safe properties. Crypto is for investment and trading, it's not safe property.