variety of pretax tasks within a single loss a single framework and it's railing and then appealing that way so one figure which is really nice to understand what CPC is trying to do is how it basically is doing something like slow feature analysis but what I mean by that is you your audio waveform is really high-frequency fast wearing and you're actually information that you care about for downstream towns is basically the slow bearing like hike signal content like phonemes because that's what really allows you to use CPC