We Don’t Have A Testable Definition Of Consciousness Thanks for coming to my TED talk.
There is nothing magical about this set of phenomena, and the majority of philosophers believe they in some way arise out of the substrate of the physical brain, but how they do so is up for debate. And just because they arise out of the brain does not mean they are strictly reducible to neural processes.
In fact, if you believe that AI could be conscious then that eliminates the kind of strict reduction that people tend to gravitate towards, because the rules of consciousness must be substrate independent.
Testability is a category mistake.