Principle in example sentence
What we're seeing now is that computers and radios are becoming so sophisticated that we're developing algorithms to let people own machines, like Wi-Fi devices, and overlay them with a sharing protocol that would allow a community like this to build its own wireless broadband network simply from the simple principle: When I'm listening, when I'm not using, I can help you transfer your messages; and when you're not using, you'll help me transfer yours.