> The ethical concerns were non-existent, said Anand. “We don’t have any sensory stimuli entering the brain. This brain is not thinking in any way.” I'm sure t

> The ethical concerns were non-existent, said Anand. “We don’t have any sensory stimuli entering the brain. This brain is not thinking in any way.” I'm sure this brain isn't conscious, but how do they know that? Is "sensory stimuli" a prerequisite for consciousness? I don't know what it could be thinking about ("hm, the vibe is really ... numb here") but do we know the prerequisites for consciousness?