multitasking: maybe not such a good thing?

Multitaskers “may not be building the same knowledge that they would be if they were focusing,” Poldrack said. “While multitasking makes them feel like they are being more efficient, research suggests that there’s very little you can do that involves multitasking that you can be as good at when you’re not multitasking.”

from: Teens Can Multitask, But What Are Costs? –