>No one knows what another person, never mind another animal experiences. The word "know" has many different meanings, so it depends which one you are using, a

>No one knows what another person, never mind another animal experiences. The word "know" has many different meanings, so it depends which one you are using, and for what purpose. For many practical purposes we often can know perfectly well a good deal of what another person is experiencing. So for instance when we see someone walk up to a door and open it, we know that they saw the door, thought it would be desirable to walk through it, and knew how to open it.