If you held paper money in the bank, you must have kept it as a fixed deposit for 10 or 12 years, and it turned out that your capital decreased day by day due to inflation, whereas if you had invested the same amount of money in Bitcoin and kept it for a long time, especially for 10 to 12 years, then your money would have definitely increased 10 to 50 times. Of course, I would say that keeping paper money in the bank, excluding Bitcoin, would be the biggest folly and your capital would decrease day by day due to inflation, but it can also be said with a guarantee that if you invest in Bitcoin, it will increase.
Don't you think that years is too long even for a common company? 10 years of leaving money inside a bank is too long. As individual, 1 year of time is like a big mistake. If you are saving let's say it's for health, ordinary pregnancy don't take more than 9 months, that should be the longest period of time anyone can leave money on their bank account, it's either you are using the bank to receive money as a business person that will use the money later or you don't.
If you keep money on Bitcoin from the beginning of this year, that investment will be ayleatd 40% higher in value by now and ordinarily someone somewhere will want to keep money in the bank for so long, that's a crazy thing to consider. If you come from a country that has a higher inflation flying around your fiat everyday, you will even kill the idea of leaving momey on your bank account. My bank account had nothing but do transactions everyday.
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I think Nothingtodo was only giving an instance with that duration of holding your money in the bank and while he may discredit those holding in the banks on that notation, it's crediting to those who holds or if had held so much on bitcoin because, inflation would always devalue that little interest from the bank, while the possibilities of earning higher in bitcoin can be certainly a hedge of the inflation.
And it's of no doubt to say, a lot of people stores their money in the banks even above the 10 years especially for retirees or individuals or institutions saving for a future project but don't know the consequences is depreciation in value in the long time.
It has also been on the high speculations in the forum that only emergency funds should be hold on the fiats and every other funds out of your discretionary should be channeled to investment such as bitcoin or stocks to propagate your savings from inflations.