I'm just saying that it's very likely possible based on what we know. Not that we know how. Even if it's based on quantum physics, it only means that we can't

I'm just saying that it's very likely possible based on what we know. Not that we know how. Even if it's based on quantum physics, it only means that we can't simply copy a brain and will have to come up with our own system. I worked in an AI / Brain lab for some time. I see no reason it can't be done, but I don't expect it to happen for a while. If it isn't possible to build a brain, then how do we ourselves exist? Time and research will eventually be able to do it.