I have to say, it's lazy to call an idea stupid with no explanation. That's ok if you're talking to a friend you know very well, who you are comfortable being l

I have to say, it's lazy to call an idea stupid with no explanation. That's ok if you're talking to a friend you know very well, who you are comfortable being lazy with, and vice versa. If you don't have that relationship, it's being an asshole. Just as easy to say, that doesn't make sense because X.