4.0

Alter's command of the material turns this into a highly enjoyable book that I was talking about the entire time I was reading. Endless pscyh studies, gaming, tv and device stats all made this an eye opener. It wraps up leaning into what for me was an unnecessary caution given the bulk of the material but I'd recommend this to anyone even curious about addiction to devices, gaming, the internet, social media and most surprisingly for me, goal setting. Fascinating.