Yes, but it likely doesn’t always work or there would never ever be a stable culture for long periods of time. There has to be something else at work. The new idea has to have something seductive or provocative. Or the group has to be in some way unhappy with the status quo or easily manipulated, etc. I don’t buy that this is simply all there is to it.
Think about it. Most people don’t care. About any thing. If there is a group of folks who are truly committed and willing to do the heavy lifting, they can drive the majority in their direction.
Probably not 100% true, but Clinton never had a majority, nor did Hitler.
You are correct. They are still far from Harry Seldon territory. :p