>"Progress is slow because much of the long hanging fruit has been picked Cancer is much more difficult and complicated than other types of diseases" Or maybe

>"Progress is slow because much of the long hanging fruit has been picked Cancer is much more difficult and complicated than other types of diseases" Or maybe the people researching it haven't been doing a very good job and have generated a bunch of irreproducible (even in principle) results: https://news.ycombinator.com/item?id=17702380 https://news.ycombinator.com/item?id=17702380 Trying to make sense of a topic when the literature is filled with incorrect facts would be quite difficult and complicated.