feedback what we mean is usually that the output here let's look this way the output here is goes into the world let's say this is a motor neuron right you do something with your arm like you hammer on a nail and then you either hit the nail or you don't let's say you don't hit the nail so after it looks like crooked there you have feedback right so feedback usually in the form of some sort of error signal right so feedback it can be like this was good or this was bad or it can be this was a bit too much to the left or so on the important part