Your claim is that Node was popular because people were excited about writing servers using 100% non-blocking I/O? I guess I agree that's a part of it but we sh

Your claim is that Node was popular because people were excited about writing servers using 100% non-blocking I/O? I guess I agree that's a part of it but we should note that in 99.5% of those cases the servers would've performed better written in Java using blocking threads. I think the other parts of it are: 1) many people wanted to write server-side Javascript, 2) people did not want to use Java, and the concurrency stories for PHP, Ruby, and Python were (and still are) really crummy.