面对大国重器的复杂图纸，全国政协委员、中国航空工业集团首席技术专家李志强深知“时间”的重量。“一款现代飞机的研制，长则跨越一二十年。航空领域的‘功成’，从来不是一蹴而就的。我们每个人，都是这个长链条上的一环。”李志强说。
Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
，这一点在wps下载中也有详细论述
在高管会议上，失败被草率地归结为“基础数据太差（BOM不准）”或“基层执行力弱”。于是，企业开出了数据清洗、编写 SOP、重组委员会等“旧药方”。结果无一例外，再次跌入烂尾的泥潭，大企业病的“熵增”愈演愈烈。绝望之中，全行业转向那几家被奉为“灯塔”的巨头，试图抄袭他们的“最佳实践”。然而残酷的真相是：不管是哪家大厂，对外输出的赋能几乎全部折戟沉沙；甚至连标杆巨头自己，也开始在深水区大开历史的“倒车”。
John Ray Clemmons, a legislator in the Tennessee House of Representatives, described him to me as “someone who just cared very deeply.” Janet Wolf, a fellow-activist in Nashville and a close friend of Friedmann’s, mentioned “how incredibly wise he was in trying to help other people understand” the plight of prisoners. Demetria Kalodimos, a former news anchor on Nashville’s NBC station, told me that Friedmann was one of her best contacts for criminal-justice stories; she valued him both as a source and as an on-camera expert, because he “spoke the language of a lawyer,” not of a social-justice warrior. Friedmann, a member of Mensa who taught himself civil case law, could write like a lawyer, too, in briefs and legal articles. He could also write like an author. He was a guest columnist at the Tennessean and had won a PEN America award for playwriting.