Talk:Progression Immunity/@comment-24053170-20181201201921/@comment-26362471-20181202012744

Yeah, this basically prevents anything that allows a person or civilization to evolve. I.e. A person will never learn from their mistakes or even be able to learn at all or an entire civilization will never get out of the stone ages being that the lack capability to evolve.

So unlike Stagnation, this prevents evolution which would in turn make countries and people to devolve over time being that they can't improve or learn from anything that they do or see others do (which is the inability to retain experience part of the power). Hope that this comment cleared things up for you a bit.