What You Can’t Say:

“They found that even when the radiologists missed a cancerous lesion, their eyes had usually paused at the site of it. Part of their brain knew there was something there; it just didn’t percolate all the way up into conscious knowledge.”

(Via.) Paul Graham on Twitter.

*What caught my eye in this is that it might be possible to have radiologists wear an eye tracking device that measures eye movements. Pause locations would be rechecked if on first inspection the radiologist decides there isn’t a problem that crosses their arbitrary threshold.