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You'd have thought it wouldn't be the proteins in the input, but the prions in the output they would care about. They're remarkably resilient, it's not unreasonable to be cautious.

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Agreed, this is one area where care should be taken. The effects of CJD are absolutely horrendous, and it’s easy to imagine that this might be a way to transmit it.

Or at least focus on not having neural tissue in the input. That wouldn't rely come from consumer waste, would it?

plenty if brsins for sale at the supermarket.

but, more important- prions are general. not specific to brain tissue.

Are there areas where brains are for sale in the supermarket? I've never seen nor heard of that, at least in Western cultures I've been exposed to.

Mais bien sûr ! Consider visiting France some day, it's not just the restaurants, supermarkets carry genuinely interesting ingredients. https://www.intermarche.com/produit/cervelle-de-porc/2889214...

its in the US too... just only in more, uh, earthy places.

its not in most supermarkets you'd see in NYC or LA. But several places in Indiana had them a few years back.

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