It's interesting. I thought I didn't lose much time to social media because I only used them in "dead" time, e.g. waiting for a train. But I've come to believe this was a mistake in two respects. Firstly, no time is truly "dead", and there's almost always something better I could be doing. Secondly, almost any use of social media trains me to crave more -- it genuinely is addictive, and the unreliability of the novelty ("refreshing in the hope of seeing something new") makes this all the worse.