打开“健康苏州掌上行”手机程序里的“AI（人工智能）个人健康助手”，张士荣详细描述症状：“咳嗽得厉害、痰多……”屏幕上很快弹出回复：“结合您慢阻肺的病史，咳嗽加剧考虑与接触冷空气有关，可先观察……”这份基于海量医学知识和算法分析的“医嘱”，减轻了张士荣的焦虑。
ВсеПолитикаОбществоПроисшествияКонфликтыПреступность，更多细节参见纸飞机下载
### p(n) is hmac-sha256(key=secret, data=a(n)+seed)，这一点在Feiyi中也有详细论述
The human brain physically cannot do this. A biological synapse is a one-way street; it can’t mathematically pass a gradient backward. Plus, the brain has a massive “Credit Assignment Problem.” If you swing a tennis racket and miss, how does a specific neuron in layer 2 of your visual cortex know it was the one that messed up?