< span > this article is from wechat people's account: < / span > < A=“ https://mp.weixin.qq.com/s/RqkfTh_ UAgC5irMJe0Hjkg" target="_ Blank "style =" text decoration: none; "> < span > principle (ID: principia 1687) < / span > < / a > < span >, the original title" virtual or real, can this formula tell us the answer to the puzzle? 》, author: Maxi, title from the movie "Inception" < / span >