before and all that kind of stuff but again the the reason we're doing this is not for future frame prediction per se but to see if we can actually learn good representations because the idea is in order to predict what's coming next you have to implicitly know lots of things about the structure of the object how light works how shadows work all that kind of stuff and what we find is basically if we try and build decoders again in the same sort of spirit as that face recognition task where we just sort of peel off the