FED and the dollar are a big Ponzi scheme. For the system to function, new dollars constantly need to be printed.
Ponzi scheme is not known until the business cannot long sustain it. I do not see FED and dollar as ponzi scheme as it is known to everyone how dollar is not a good way to hold money. Dollar is even better, there are some countries with hyperinflation.
Britain is bankrupt, but it holds many billions of dollars worth of bonds. If they do cut the rate, then Britain should sell those fast. The long term rates are going up, so an interest rate cut is not sustainable, and will lead to a weakening of the dollar imho.
The solar can get weak, but also it can lead to temporary increase in bitcoin price. Bitcoin holders are really waiting for this.