
She helped turn a live-video experiment into Houseparty. Now Sima Sistani is back at Duke, building a fragrance company, and asking what makes people want to gather in the first place.
A Harvard student wanted a simpler way to see her friends. Building Clyx took Alyx van der Vorm to Miami, into venture-backed entrepreneurship, and toward a more interesting question: how do strangers become regulars in one another’s lives?
After teaching software to hold a conversation, the former journalist behind Replika wants everyone to make tiny apps. Her new wager is that software itself can become a social medium.

Meerkat burned bright. Houseparty made dropping in feel natural. Now Ben Rubin is applying an architect’s eye to Towns - and betting that online communities should own the rooms they fill.