更值得关注的是技术迭代风险。机器人更新换代速度较快，新款产品一旦性能更好、价格更低，旧设备的租赁吸引力会迅速下降。设备折旧不仅来自物理损耗，更来自技术代差。
While continuing to push on performance, I noticed a bizarre pattern - my ssh client sent hundreds of no-op packets along with each move I made. Processing these packets slowed my server down a lot.
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