The 'retarded monkeys' characterization was coarse, but I do think there's something special (and especially dangerous) about mobile devices. 1) They're always

The 'retarded monkeys' characterization was coarse, but I do think there's something special (and especially dangerous) about mobile devices. 1) They're always with you 2) Input capabilities are limited so they tend to encourage consumption over creation 3) They run robust software stacks which enable addictive experiences A general computer sitting on a desk isn't going to be used as often, and when it does get used, it'll be easier to write on. Writing's good for the brain. A television has really limited input capabilities, it's not healthy to watch TV and the "TV rots your brain" concern predates the Internet. But it isn't as addictive as a mobile device. A phone or tablet is the worst of both worlds. I've put a fair bit of effort into reducing my time with those devices in recent years, and I think I'm happier and more productive as a result. If I had a kid I think I would do the same with them.