While there's some truth in this I'd advice caution in trying to avoid everything that can stave off boredom. You do need to be careful with it, but there's no

While there's some truth in this I'd advice caution in trying to avoid everything that can stave off boredom. You do need to be careful with it, but there's no problem with e.g. browsing hackernews for a while. Who knows, you might learn something. Although if you overdo it then things like browsing social media don't so much stave off boredom but merely become a way of spending time bored.