I have a preposition on this. If you take an existing human brain, and keep it alive in a jar (or whatever), it would probably suffer immense mental stress and

I have a preposition on this. If you take an existing human brain, and keep it alive in a jar (or whatever), it would probably suffer immense mental stress and almost certainly break down or die. Clearly not ethical. However, if you grow a brain in a jar, would it suffer? It doesn't know any different, and as a baby accepts it's reality as it grows up, so would the brain. I posit here that it wouldn't suffer, as living in a jar would seem normal to it. Personally, I'm not sure I'm against growing brains just because they may suffer. I do know I'm against growing brains because it will undoubtably lead to a robot/cyborg uprising that will doom all of humanity.