Real interest rates are already negative at -5.3% in the US due to inflation, and are projected to remain negative around -3.3% in the coming years, even with potential interest rate hikes.
"we already have negative rates and it's happening right before our eyes that's because if you have a two and a half percent fixed rate mortgage with 7.8 inflation you're effectively gaining 5.3 percent by borrowing money bringing negative interest rates here today even throughout the next few years even if interest rates increase real rates are expected to remain negative and stand at around negative 3.3 percent in the us"