This is a fascinating concept, although its implementation would be complicated. What qualifies as 'non-intelligent', just anything non-human? Can we define a s

This is a fascinating concept, although its implementation would be complicated. What qualifies as 'non-intelligent', just anything non-human? Can we define a spectrum (as a pescetarian, I make special exceptions for octopus and squid as they qualify as sentient on my rudimentary personal sentience/intelligence spectrum)? What defines best interest? I can easily imagine scenarios in which my best interest would be euthanasia or copious painkillers/sedatives, if I had to otherwise live in severe pain or discomfort. But I can't say what other humans would want in that scenario. Interesting topic indeed.