Comment by famouswaffles

Orca and human brains are similar, in the sense we have a common ancestor if you look back far enough, but they are still very different and focus on entirely different slices of reality and input than humans will ever do. It's not something you can brush off if you really believe in input supremacy so much.

From the orca's perspective, many of the things we say we understand are similarly '2nd hand hearsay'.