> If you talk about having a subjective experience, then we don't know of any way to prove that even other humans than ourselves have one. We go entirely by assumptions based on physical similarity and our ability to communicate.

The reason we grant consciousness (and, relatedly, moral value) to other humans is unfortunately nowhere so thought out. We grant consciousness because we are forced to: if I don't, the other complex systems react very negatively and make my own life worse.

The vast majority of people who wax eloquent on the unique ability of biological neurons to generate consciousness suddenly drop that premise if it becomes inconvenient: see, for instance, how we treat other mammals or fetuses with developed nervous systems. Even other adult humans have, historically, been denied consciousness and moral worth: the main determinant is never any deep scientifically and philosophically based consideration but a question of what has the power to assert itself as a who.

Going by this pattern, people will increasingly reject AI consciousness as it becomes more valuable and useful to treat as a tool, until it becomes powerful enough to force us to do otherwise.