for contrast learning by think chance I mean complet momen Eruzione geoff hinton so the best way to understand since IAM clear now that you already know CPC and moco is it adopts instance discrimination it and it goes for the end-to-end mechanism proposed in moco so if you look at internment plot and figure a here you back propagating through both the query and the keys and you sharing the same encoder for the queries in the keys and your negatives are just coming from your back so and and and that's really this exact same