one bite at a time
South African Bishop Desmond Tutu once said, “There is only one way to eat an elephant, one bite at a time.” Apple of 50 years: it’s that the people crazy enough to think they can change the world are the ones who do. The misfits. The rebels. The troublemakers. The round pegs in the square holes. The ones who see things differently. Violation of Bell inequality with unentangled photons 徐令予: 在经典直觉中，人们往往认为：物理对象在被测量之前就已经“具有确定属性”，测量只是把这些属性揭示出来；同时，一个地方发生的事情不应立即影响到远处的另一个地方。这两种直觉合在一起，构成了所谓的“局域隐变量模型”：每个粒子的行为由某些隐藏的内部参数（隐变量）预先决定，且信息传播不超光速（局域性）。可以把它理解为：经典物理假定自然界像一台早已写好程序的机器，而贝尔实验表明，这种“预先写好答案”的图景在微观世界并不成立。 ...