guess I live in I live in Silicon Valley and if you walk around Silicon Valley and look at what where people are spending all the engineering time is often in coming up with these feature representations so let's let's look what's delve deeper right so where do these features come from um since they're the primary lens through which our algorithms see the world this gives them a certain importance right so how about computer vision oh and then facts are interesting and in fact this notion of feature representations is pervasive