Amol Sarva does many things at once because he has to.
The cofounder of Virgin Mobile USA and Halo Neuroscience, Sarva currently runs three businesses, give or take. He's the founder of Knotable, a web-based dashboard for managing and coordinating work. Meanwhile, Sarva is growing Halo, a brain-stimulation company that claims to improve performance, and a coworking-space business, Knotel, which seems to double its headcount every time you blink.
