I find it very hard to tell some of my brilliant friends that it appears that they are in this case talking our of their fundaments, or at least being somewhat nuts. I used to be more critical, but then people would not want to talk to me. So I learned to be constructive and positive. Which is a great thing and I thank California culture for that. However, I can't find a good way to be an ass to my friends for their own good. (assuing I'm not talking out of mine, of course)

Any tips anyone?