15  Hair-splitters might argue that there is some sort of internal model that is self-generated, pointing to 
internal states of the system that to some degree correlate with classic cognitive states, the more so with a 
system like MuZero (Schrittwieser et al., 2019). In my view, the limited ability of such systems to transfer 
to novel circumstances (see main text) undermine any strong claims of this sort. 

 

 

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THE NEXT DECADE IN AI / GARY MARCUS 

considerable retraining, precisely because they lack rich cognitive models of the 
environments in which they operate.16
The Next Decade in AI-