One thing that is very hard if not impossible for the human mind is to 'unsee' stuff. Once you have learned a certain method or theory it becomes almost impossi

One thing that is very hard if not impossible for the human mind is to 'unsee' stuff. Once you have learned a certain method or theory it becomes almost impossible to think creatively about a problem and attack it from different angles, because you already know what works. Repeated exposure also reduces skepticism. The writing world has already long known this, you can not proofread your own work. You will read 50 times over a silly mistake without ever noticing it. Software engineering is understanding this more and more through code review as well, but academia is slow on the uptake. Groups or individuals will spend months on their work without anyone else to check on it. The young are not yet cursed with knowledge. They can look at things with a fresh look. They can poke holes in stuff others are 'reading over', and find completely new approaches.