I wondered the same thing. How can anyone really know whether what they experience in their black box is the same as what another person experiences? Evidence

I wondered the same thing. How can anyone really know whether what they experience in their black box is the same as what another person experiences? Evidence of enthusiastically communicating an experience isn't the same as being able to prove that you actually experienced it. Likewise, not communicating an experience doesn't mean that it wasn't experienced.