Sometimes the academics aren't talking to each other, not out of spite, but just because they're in different fields. I recall from a computer vision class tha

Sometimes the academics aren't talking to each other, not out of spite, but just because they're in different fields. I recall from a computer vision class that some of the early CV researchers wasted a lot of time redeveloping math techniques that had already been developed by the photogrammetry people literally decades before.