I could live without Twitter obviously, but I could say that for pretty much every Internet service other than maybe email. What's great about Twitter is the se

I could live without Twitter obviously, but I could say that for pretty much every Internet service other than maybe email. What's great about Twitter is the serendipity; I've been able to follow people with perspectives that I just don't have in my professional or personal circle, and reading/chatting with them over the years has profoundly expanded my worldview. It's not much different in that sense than HN – I could never call any thread or single day of browsing "important", but I know that what I've learned cumulatively over time has been very important.