The US stock market and cryptocurrencies are both going gangbusters. You don't need ZIRP to be awash in cash. Money can print itself when rich people are optimistic.
I don't know what causes bubbles to pop, but I don't think it's directly related to US monetary policy. I suspect that the bubble just moved elsewhere.
While canvas, sculpture, and other media are far removed from jpegs, the scarcity of adjacent digital forms going away may have reduced the interest in the market for "shaped aesthetic things".
The attention, and thus money, has moved elsewhere.
Pretty much every country is in conflict at their border. However, resolutions can happen peacefully. Nations are essentially pillaging structures and thus want to always expand their borders.
I don't know what causes bubbles to pop, but I don't think it's directly related to US monetary policy. I suspect that the bubble just moved elsewhere.