Critics offer many arguments against raising octopuses for food, including possible releases of waste, antibiotics or pathogens from aquaculture facilities. But as a psychologist, I see intelligence as the most intriguing part of the equation. Just how smart are cephalopods, really? After all, it’s legal to farm chickens and cows. Is an octopus smarter than, say, a turkey?
Sure, pragmatically we can make these choices, but it’s still arbitrary.
I don’t think it is, it just acknowledges the error bars of uncertainty around the non-arbitrarily line we’re yet to fully define.
Any line would be arbitrary without an ethical underpinning on which it is based, the discussion is traditionally philosophical in nature rather than pragmatic - although ethicists are in short supply these days so we must make do.