Ray Dalio在2008年美国金融危机之后，国产观在Youtube上的分享的一个30分钟的视频，国产观介绍生产效果、短期债务周期、长期债务周期的起源。这个视频对于没有任何经济学基础的人都是便于理解的。比尔盖茨对这个视频的推荐语是这样的："This knowledge would help everyone as investors and citizens. Watching it for 30 minutes is a worthwhile investment." 这些知识对每个人都有帮助，无论是投资者还是普通人；看三十分钟本身就是一个值得的投资。
李香兰
回复 :该剧改编自祈祷君的同名小说，讲述了游戏架构师肖鹤云（白敬亭 饰）和在校大学生李诗情（赵今麦 饰）在遭遇公交车爆炸后“死而复生”，于公交车出事的时间段内不断经历时间循环，从下车自救到打破隔阂并肩作战，努力阻止爆炸、寻找真相的故事。
回复 :一名女子在一位陌生的叔叔去世后继承了一块墓地，并发现自己走入了一连串谋杀案和黑暗秘密的中心。
回复 :Stine and Teit, your average urban middle-class artists and intellectuals, leave Copenhagen for the wilds of neighbouring Sweden’s forest. Soon, they find out that something is strange there – most disturbingly – when their son Nemo suddenly thinks his mother isn’t really his mother anymore. It becomes clear once Stine and Teit discover that they have neighbours who look exactly like them – mirror images made flesh and blood.The subject of reflections and doubles is introduced in the film’s first shot: a view of a lake landscape turned 90° so that the water’s surface runs vertically through the image’s centre. Only once the shot gets tilted is it revealed which side mirrors which. Later, a mother and child are reflected in a glass door.However, this is not your doppelganger thriller of the gothic variety. Note the title: in physics, superposition means (per Merriam-Webster) "the combination of two distinct physical phenomena of the same type (such as spin or wavelength) so that they coexist as part of the same event". This is more a metaphysical meditation towards the realisation that none of us is ever alone, but also never unique.