Many a researcher has returned from an international conference with a napkin or beer-mat covered in jottings from a spontaneous and convivial late-night collaboration.

• 许多研究者仅从国际研讨会中带回一张写满缩略笔记的餐巾纸或者啤酒杯垫，而这些则是来自自发、愉快的午夜协作的成果。