time now for the ridiculist. this has been a very exciting week in the city of las vegas where the international consumer electronics show has been going on since tuesday. every year we learn from the show that there s some daily activity that we re all doing wrong. for instance, brushing our teeth. at this year s show, a company debuteded what it calls the world s first connected electronic toothbrush. it s never been easier. you simply download the free mobile app, connect via bluetooth, and every brushing is recorded. then the data about how you brushed automatically synchronizes to your smartphone, telling you whether you brushed long enough. it s never been easier? wasn t it a tiny bit easier when you didn t have to download an app to brush your teeth? look i m all for this. finally our phones can tell us if we ve brushed our teeth. until then the only way to know was to, i don t know, be alive,