This is the most Bullish case for the Crypto Currency space and for Bitcoin in a long time... Negative interest rates at Banks... The International Monetary Fund wrote a blog post describing the possibility of creating negative interest rates at banks to stimulate the economy if a recession hits.
https://blogs.imf.org/2019/02/05/cashing-in-how-to-make-negative-interest-rates-work/
The article goes onto explain a horrendous system that will impact everyone and especially low-income people the worst. The IMF laid out plans to implement negative interest rates. Literally -3% interest on money that you put into the bank. If you put $100 into the bank and it is there for a year you get $97.
To make matters worse they are making there be electronic money, e-money, and physical cash separate forms of money. You will be given $97 in e-money if you deposit physical cash. The reason behind this will be to try to stimulate the economy and drive up spending, however, this probably wouldn't be the case. People will likely go out and withdraw all their funds and stuff them under their mattresses, or they will try to invest them if they can into Bonds, Stocks, or physical goods like gold. They may put their funds into Crypto Currencies as well.
I see the negative interest rates a bullish sign that people may turn to stable coins, so that they don't have to deal with their currency being devalued by negative interest rates, but they still want their cash to be liquid. People can sign up to put their money into a 6-month CD or a 3 year bond, but then that capital is tied up for a very long time and cannot be used for immediate purchases like Crypto can.
I don't think there has ever been a more bullish time for Crypto now that we are seeing Turkey, Venezuela, and Argentina having massive inflation. Argentina's inflation has made Bitcoin more expensive than it has ever been for them in Argentinian Pesos.