Siri has access to all your personal data and has to be right. If you're going to ask it when you need to be at the airport for your flight and it say 7pm and it's really 7am you are really screwed. If you're asking Copilot for an opinion about your not-so-hot take on Curtis Yarvin

https://news.ycombinator.com/item?id=44980305

it doesn't really matter if it makes a mistake of that magnitude.