So? I assume you've adjusted the Y axis to try and show a correlation, but I honestly can't think of any reason why central bank balance sheets (assets?) would be correlated with movements in Bitcoin's (exchange rate?). The movement of Bitcoin is so much more volatile it doesn't fit within the graph. I would try plotting changes in an aggregate of stock indices against changes in Bitcoin. Regulatory thinking is that crypto should be considered a security, so that might be interesting.