butterfly effect

• I once consider that if i hit an old man one day on my way , ? what should i do when i had ? power ? described in ? butterfly effect
  我曾经思考过这么一个问题：如果有一天我在路上骑车撞倒一个老人，而我恰好有蝴蝶效应之力，我该如何做？
• Today , we realize , perhaps more than ever , that the world of human activity also has its own " butterfly effect " for better or for worse
  今天，我们也许比以往更清楚地认识到，人类活动的世界，无论是好是坏，也有自己的“蝴蝶效应” 。