> … ephemeral stimulation you can't even remember 30 seconds after seeing it. I know 50 year old adults who can spend entire hours just in this mesmerized state of flicking through these random feeds, seeing but not seeing, like some kind of drug induced hypnosis

To be fair, most people who engage in "healthy" habits like reading, creating, meditating, socializing, or just sitting and staring at nature, could also said to be in a mesmerized almost-hypnotized state, and rarely remember much of what they're experiencing.