The hypotheses in the article are much stronger. To me, the increasing use of mind altering drugs in geriatric care is an obvious contributor... so much so that these drugs list that risk on the label.

I would hope the article is better than the gut feeling of some random programmer commenting on hn before his standup.

The increase was greatest in the groups least likely to engage in that behavior.

I must point out that the elders in my life are the most tech addicted people I know. They barely know how to use it, but they never put it down. Which means they are constantly struggling to get their fix. I saw this behavior 25 years ago doing tech support for a dial-up ISP, and it has become way more common since. To the point that the senior citizen posting nonsense on facebook, and forwarding email chains is a common trope.

Again, I'm sure the article is doing better research than my personal experience, I was just surprised it wasn't mentioned.