Nature of #consciousness: thinking about two possibilities and their consequences.
We know that we are conscious (at least I am), but we do not know if we HAVE to be conscious (to behave as we do behave).
1. possibility: humans HAVE to be conscious (to behave as we do behave).
-> inference 1: consciousness affects behavior.
-> inference 2: selective pressure affects consciousness, thus it is evolved.
-> inference 3: a philosophical zombie would be distinguishable from a normal person.
2. possibility: humans DON'T have to be conscious (to behave as we do behave).
-> inference 1: consciousness doesn't affect behavior.
-> inference 2: selective pressure doesn't affect consciousness, thus it didn't evolve.
-> inference 3: a philosophical zombie would be indistinguishable from a normal person.