1980年代中，Maggie姐还是铜锣湾第一夜总会一名普通的带位员。香港经济起飞时，每晚夜总会里的VIP房总是爆满，迟来的客人只能坐在最不受欢迎的大厅里。Maggie姐靠着伶牙俐齿，把客人安排得很是妥帖。不到一年时间，经理找到她，问她愿不愿意当妈咪。
The grid lines on the visualization represent a tree structure underneath. Every region is a node. When a node splits, it creates four children. The root node covers the entire space. Leaf nodes (nodes with no children) hold the actual points.
，更多细节参见同城约会
We benchmarked native WebStream pipeThrough at 630 MB/s for 1KB chunks. Node.js pipeline() with the same passthrough transform: ~7,900 MB/s. That is a 12x gap, and the difference is almost entirely Promise and object allocation overhead."
block: Writes wait until buffer space is available. Use when you trust the producer to await writes properly.