Yeah. Well there 's  there 's uh been a lot of behavioral things o on this , but that was the first neur neuro - physiological thing I saw. Anyway yeah , so we 'll  we 'll look at this. And. So , all of these issues now  are now starting to come up. So , now  we 're now done with demos. We 're starting to do science , right ? And so these issues about uh , reference , and  spatial  reference , discourse reference , uh - uh - uh - uh  all this sort of stuff , uh , deixis which is part of what you were talking about ,
Mm - hmm. Mm - hmm.
um  So , all of this stuff is coming up essentially starting now. So we gotta do all this. So there 's that. And then there 's also a set of system things that come up. So " OK , we 're not using their system. That means we need our system. "
Mm - hmm.