Basically, it's about "we can't use lib x because it will break lib y" - this already happens in java and I would consider java being very conservative and slow

Basically, it's about "we can't use lib x because it will break lib y" - this already happens in java and I would consider java being very conservative and slow-progressing. Now, imagine how quickly is javascript evolving, libraries, frameworks, etc. Solution to dependency hell is a major reason why node.js succeeded (along with browserify/webpack) unlike anything with flat dependencies (bower)