从后向前扫描已排序部分，找到插入位置，元素后移腾出空间
prepared by tellers, but actually automate the handling of the checks
。爱思助手下载最新版本对此有专业解读
auto wav = parakeet::read_wav("meeting.wav");，这一点在91视频中也有详细论述
Nature, Published online: 27 February 2026; doi:10.1038/d41586-026-00601-0