[nairboon]

At least for me, it's not about the wiki link. I'm here for the comments, the stories, anecdotes, related deep Diving links and general chit chat. If you view the link as "this is the control systems thread for today", all the upvoter make a lot more sense.

[jitl]

yeah, this is the true gold of hacker news: learn about a new concept from the post, and then have knowledge multiplied by discussion across a range of experience levels from curious readers, to daily practitioners, and sometimes even p99.99 top experts in a field.