According to our push-based system, we update the first node in our graph (A). This pushes a signal to (A)’s dependents that they should now update. In this case, both (B) and (C) update. However, (B) depends on both (A) and (C), so when (C) updates, (B) needs to update again, and we discard any previous work we’ve done there. Similarly, based on just a single update to (A), (D) will receive three different signals to update.
除了基建层面的讨论，也有人好奇，第二代刀片电池全面推向市场后，现有的第一代产品会不会面临停产淘汰的局面。，详情可参考新收录的资料
虽然此次寿司郎门店或许是个别门店的偶发事件，但也从侧面反映出当前在中国市场狂飙的寿司郎，在供应链管理及品控方面是否与门店快速增多的规模化方面实现同步，外界自然不得而知。。业内人士推荐新收录的资料作为进阶阅读
Lawrence Yun, chief economist at the National Association of Realtors, estimated that with rates under 6%, roughly 5.5 million more households qualify for a mortgage than a year ago. He expects a share of them to actually enter the market this year.，这一点在新收录的资料中也有详细论述
Wiki - Lisp (LISt Processing)