I noticed several times that I can become hyper-efficient when I am extremely tired. I attribute to "not thinking so much" when being tired, and its probably as

I noticed several times that I can become hyper-efficient when I am extremely tired. I attribute to "not thinking so much" when being tired, and its probably as simple as the frontal lobe being less used, I think anyway. I just think a lot less cleverly and do rote stuff instead, but really quickly and without delays.