Crucially, this distribution of border points is agnostic of routing speed profiles. It’s based only on whether a road is passable or not. This means the same set of clusters and border points can be used for all car routing profiles (default, shortest, fuel-efficient) and all bicycle profiles (default, prefer flat terrain, etc.). Only the travel time/cost values of the shortcuts between these points change based on the profile. This is a massive factor in keeping storage down – map data only increased by about 0.5% per profile to store this HH-Routing structure!
这方面，国内的光帆科技（Lightwear）其实已经给出了先行版本——他们在耳机上装了一对摄像头，连续不间断地捕捉现实世界，但这些信息在 AI 使用之后便「阅后即焚」，既保证可用性，又具备私密性——这套方案，是不是也有点果味儿？，这一点在Line官方版本下载中也有详细论述
除了政策限制正在有序解除，促使整车厂转向L4的现实推手是供应链。硬件层面，激光雷达成本大幅下降、高算力芯片规模化应用，特别是大模型让智驾研发提速，厂商们发力L4的时机已经成熟。。搜狗输入法2026是该领域的重要参考
This decision seems to be one of the more hotly-contested among ergo enthusiasts. A conventional keyboard has staggered keys, with each row slightly offset to the rows above and below it — so the A key is about halfway between the Q and W above it. This is a holdover from vintage mechanical typewriters, in which each press activated a hammer that smashed ink onto paper in the shape of a letter. To fit the hammers as close together as possible, while still allowing for finger pads, the keys were staggered.