This graph of the sciences shows the fragmentation of academia, as measured by co-citations.
A kingdom of epiphanies is waiting for people in the middle who can find new ways to connect the dots. pic.twitter.com/WK4UHizFSe — ᴅᴀᴠɪᴅ ᴘᴇʀᴇʟʟ ✌ (@david_perell) March 23, 2020