I am not mistaken. Clearly I never said he would be teaching all the time. He even said he was going to remain as professor on a part time basis. Pulling someo

I am not mistaken. Clearly I never said he would be teaching all the time. He even said he was going to remain as professor on a part time basis. Pulling someone to industry doesn't stop one from contributing back to the field. This is what they do, what people actually care about. In fact, if you are a big player in a field, you spend most of your time conducting your research and running a lab, not teaching classes. This is the norm and half of the famous professors I had barely ever come to lecture, only the TA would show up (some schools are strict on this though, like MIT). And I often tell people if you want real good solid education, especially for an undergraduate, don't attend big player's lecture. Your TA or your average not-so-well-known professor can be more helpful.