The next big thing in probing the brain is assembloids—free-floating brain circuits—that now combine brain tissue with an external output.
To be clear, few would argue that today’s mini-brains are capable of any sort of consciousness or awareness. But as mini-brains get increasingly more sophisticated, at what point can we consider them a sort of AI, capable of computation or even something that mimics thought? We don’t yet have an answer—but the debates are on.
https://singularityhub.com/2021/01/12/meet-assembloids-mini-human-brains-with-muscles-attached