No subject

the learner can manipulate the environment are important for the survival
of the learner.  The repertoire of manipulations will (should?) bias the
learner towards discovering properties that are invariant under those
manipulations.  Therefore, the learner will tend to learn concepts that
are relevant to the tasks that it can perform and its survival.

Disclaimer: I don't know anything about symbol grounding.  I am actually 
working on analogical inference - but I have a nasty feeling that if I ever
get half way towards having an analogical inference net I will have to
know about symbol grounding to train and test it.

Ross Gayler
ross at psych.psy.uq.oz.au