I was about to be the coolest dad ever . I’d prepared the magic words: “Do you want to help daddy test the new Lego Smart Bricks? I can pick you up from school early!” It worked. My kids literally jumped for joy. When The Lego Group announced in January that a tiny computer brick would be the company’s “most significant evolution” in nearly 50 years, even Lego fans were skeptical. Why buy bricks that make pew-pew sounds that kids should make with their own mouths? My first reaction was to