system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happened at the New York Stock Exchage today and what it affects

What exactly happened at the New York Stock Exchange today, and how does it affect anything?
gpt
To put it simply the computer system that runs the NYSE crashed and it took about 3 hours to get it back up.  It's believed to be an internal technical issue that has now been resolved.  Strangely enough though, Anonymous, the hacking group, tweeted something about it yesterday, but the media is reporting that there was no malicious involvement. 
 
Will this affect anything?  Not really.    There are 11 other stock exchanges and lots of the trades from today were just routed through the NASDAQ.