alt Hacker NewsThat applies to pretty much any reasonably complex idea. A new system requires effort to understand it. When you've expended that effort, it's not complicated anymore.
I don't understand this sentiment—as if learning IPv4 was enough work on your part, and now you're entitled to networking protocols never changing anymore.
Just as much as people are not entitled to lack of change, they are not obligated to enjoy, welcome or facilitate change.
What I learned about IPv4 at the turn of the century allows me to comfortably plan and manage networks up to a few thousand nodes, maybe a few tens of thousands.
I don't work in networking anymore. I really don't care about what those who are in that business. What you need to manage contemporary billion-node size networks and interchange between them is not my problem. You try to make it my problem, but I don't care.
I'll continue organizing the very few and very small networks that are still my responsibility using pre-CIDR ideas.
Maybe it becomes impossible some day. I'll deal with it then.