There was undoubtedly a lot of alcohol consumed last weekend in Las Vegas by attendees of CES, the largest consumer technology trade show in the country. But only one attendee had every moment of his alcohol consumption quantified and broadcast to the world: Northeastern University graduate and Quantac co-founder Jack Sattell.

Quantac makes the Tally, a wearable device that measures alcohol diffusion through the skin to track how many drinks the wearer has consumed. Sattell, who is Quantac’s chief…