Or if you're interested in say domain adaptation, right? By the time you've read 50 or 100 papers, you have a very good understanding of, of a subject like that. But if you read 5 to 20 papers, it's probably enough for you to implement it but maybe not, not sure this is enough for you to do research or be really at the cutting edge but these are maybe some guidelines for the volume of reading you should aspire to if you want to pick up a new area. I'll take one of the subjects in CS230 and go more deeply into it, right?