no backward action cause it makes the chance of finding out when <goal --> reached> occurs much more unlikely.
no backward action cause it makes the chance of finding out when <goal --> reached> occurs much more unlikely.
printedheart/opennars,printedheart/opennars,printedheart/opennars,printedheart/opennars,printedheart/opennars,printedheart/opennars