I've seen a few suggestions like this, but no quite the same thing. So basically, when your nichelings attempt doing something that they don't have the skill for, for example cracking open a clam, they get a slightly better chance of success next time they try it. If the attempt is successful, it will increase the learning even more.   Nicheling belongs to @ImpyFawn10 , if you don't want your nicheling to be used as consept art, let me know and I'll remove it