Yes, it's wise to be aware of how fickle the public's attention can be. TikTok will not be around forever, and likely won't be prominent enough to bother discussing a decade from now.

The parent comment also has a point, though, because stale trends generally manage to limp along around 60 years or so. Ideas tend really to win out conclusively once the opposing side has died off.

So the "culture" that, at Facebook's height of popularity, Facebook fostered, in fact will live on in a certain generation.

And all the nonsense that TikTok seems to foster today will, sadly, affect the world for decades after TikTok turns into a nonentity.