Sure, ageism is bad. I'm in my 50s too and I've seen my share of hype cycles. But I think there is a danger of overreacting to the unbridled enthusiasm of younger people.

Every new cyle comes with ideas that are similar to what we have seen before. Sometimes I find myself thinking, OK, been there, done that, doesn't work. But I suspect that there is a sort of experience bias that lets me see the similarities far more clearly than what's new and different.

In every cycle people claim that it's nothing new and yet, with hindsight, we often find that small differences were important enough to change the world unpredictable ways.

I think it has value for older folks to contribute arguments and perspectives, but let's not be too self-righteous about it. Similar ideas can lead to very different outcomes in a different context.