Started as a fourday conference in California years ago, TED has grown to support those worldchanging ideas with multiple initiatives. 매년 열리는 TED 컨퍼런스에서는 세계 최고의 사상가와 행동가들을 초청하여 몇 분 동안 강연을 진행합니다. Their talks are then made available, free, at TED.com.