IRC is a collection of chatrooms on all kinds of technical topics: programming languages, frameworks, cloud providers, topics
often hundreds of people are in each chat room. You can get live Q&A sessions with veteran and highly respected programmers.
I've chatted with an engineering director of AirBNB on a channel there, and also a security expert who was tracked by the FBI for a bit, for example-- interesting, intelligent people.
Examples of chatrooms ("channels") I am in: #nodejs #python #machinelearning #economics [3]
You'll need to learn how to register and login to IRC -- it's pretty easy, just involves a command. For Mac OS I recommend the LimeChat client.
[0] https://www.online-tech-tips.com/software-reviews/the-11-bes...