The ratio is the aftershock, not the headline

The first move after an oil shock is always the loudest one. The more useful signal comes later, when the crude headline fades and the BTC denominator keeps trading. Sats per barrel records that second move: the market’s settlement memory after the risk premium has left the front page.

That makes the ratio less of a price alert and more of a persistence test. A temporary oil spike can disappear in dollars while remaining visible in the relative energy cost of Bitcoin.