system
A chat on subreddit /r/NoStupidQuestions
human
You'll hear many say that it was never there, and it was a "dooms day" prediction that just was stupid.

The true story is that thousands and thousands of people managed to correct the problem in the "few" places it in fact could give giant problems, so nothing happened at the Y2K :-)
gpt
I was one of those people. I worked at a medical billing company as a consultant, and my whole job was to assess every piece of hardware and software for Y2K compliance, and update everything that could be patched. Then I had to write a big report about which things were patched, which couldn’t be patched, and what the impact would be. 

Ultimately it was no problem. Most of the software got patched and any hardware clocks weren’t critical, like in a printer or something. The medical bills got processed like normal after 1/1/00.