“When you look at the diminishing returns in medicine, you can say, well, maybe all the easy drugs have been discovered,” said James Evans, a sociologist at the University of Chicago. But the more compelling possibility, he said, is that “the very organization of modern science is leading us astray.” In Evans’s interpretation, the low-hanging fruit hasn’t been plucked. The problem is that too many scientists are all looking at the same few trees. “I think there are all kinds of weird trees in the forest that we haven’t found, because everybody’s looking in the same place, and we’re not making
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