From brick weed and pager dealers to QR codes, lab results and loyalty points, buying cannabis has changed almost beyond recognition. There was a time when buying weed didn't involve a menu. There were no terpene profiles. No QR codes. No rewards points. Nobody asked whether you wanted flower that was uplifting, relaxing, creative, euphoric or good for watching four hours of nature documentaries. You called a guy. And if you were buying cannabis in the 1980s or '90s, ther