5 fascinating people you've never heard of at PopTech 2011

There are no rock stars at PopTech, no household names. But this annual conference in coastal Maine is a hub for super-smart people, a chance to get a look into ideas and technologies that soon will change the world.

 As part of the discussion about the work of a Princeton professor who studies why animals swarm, the following tidbit appears: “It turns out, for example, that locusts swam [sic] not because they love flying in giant clumps, but because they’re trying to eat each other — and avoid being eaten by the locusts hot on their tails.”