Fried Chicken posted:

No, the difference is we can do an MRI for one set and see "yep, matches known cases" and the other set aren't grounded in reality. What would eventually become us split off from what would eventually become a squid back in the Cambrian era. Half a billion years later, the neurological structure is completely different and the theory of mind is different, so yes, we can say with perfect knowledge that you are not actually a squid, and to identify as one is not valid. You might be a candidate for being diagnosed with any other of a number of neurological conditions, but those don't validate your self diagnosis that we have proven is false.