And the other trick , which is not a technical trick , it 's kind of a knowledge engineering trick , is to make the n  each node sufficiently narrow that you don't get this combinatorics. So that if you decided that you could characterize the decision as a trade - off between three factors , whatever they may be , OK ? then you could say " Aha , let 's have these three factors " , OK ? and maybe a binary version f for each , or some relatively compact decision node just above the final one.
Mmm.
And then the question would be if  if those are the things that you care about , uh can you make a relatively compact way of getting from the various inputs to the things you care about. So that y so that , you know , you can sort of try to do a knowledge engineering thing
OK.