Unknown things are to be avoided, until feedback shows that there's no threat, which makes aversion costly. Then simple observing is the lowest cost option unti

Unknown things are to be avoided, until feedback shows that there's no threat, which makes aversion costly. Then simple observing is the lowest cost option until there's fewer novelties. The extra energy expended from interaction is then offset by the gains in feedback. Eventually even that peters out and finding something else to do makes more sense.