There are some strong corrections that need to be made to your math. 1. Only a subset of uploaded videos need to be checked by humans, those that were flagged

There are some strong corrections that need to be made to your math. 1. Only a subset of uploaded videos need to be checked by humans, those that were flagged by the automated system. 2. Only a subset of the runtime of each flagged video needs to be checked. In other words, if a human decides within 12 seconds of a video that it is infringing, there is no reason to check the remaining portion of the video.