like okay we're kind of really finding that there's a lot of fertile ground here and with like kind of the right tweaks and you know clever insights we can continue to make further progress so this is where a lecture comes in and this is like I think one of the ones that first shows kind of another new interesting algorithmic potential improvement and someone excitingly shows that it's much more efficient so we mentioned the masking for bird so there's actually this kind of gap here which is the problem is when you