When Google started selling computer glasses in 2013, the people who wore them in public got a nickname. Glassholes. Snap's new pair costs $2,195 and weighs almost three times as much as a pair of Ray-Bans, and its plan to keep you from getting called one is Tony Stark. Sounds silly, but hear me out. Every company that's tried to put a computer on your face has hit the same wall. People don't care how smart the glasses are if they feel like a dork wearing them to get coffee. Glass cost…