I just wanted to add a comment about your muscle bulk comment. Protein in protein shakes is usually denatured or rather just a collection of amino acids.

Proteins that are synthesized by the body have a structure to them and Prions are simply misfolded representations of those proteins.

The process of destroying a Prion involves denaturing it by removing its structure.

I don't believe that muscle tissue is anymore related to Prions or structured proteins than any other part of your body as the protein that we eat is simply amino acids or building blocks for creating things like tissues.

It does beg the question though, could some of the advancements by DeepMind help us understand how to unfold Prions more effectively than using Bleach.