《镜子大全》《朝华午拾》分享 http://blog.sciencenet.cn/u/liwei999 曾任红小兵,插队修地球,1991年去国离乡,不知行止。

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FSD Emergency Avoidance: Sometimes Ghost, Sometimes God

已有 124 次阅读 2026-5-29 07:54 |个人分类:AI 浪潮|系统分类:观点评述

Yesterday I watched a real-time dashcam video of a Tesla making an emergency swerve to avoid a car that suddenly shot up from the left lane entrance ramp. My immediate thought: human reaction speed simply can't handle that.In that situation, most of us instinctively slam the brakes — which on a highway is itself dangerous. Being able to safely dodge to the right lane like FSD did is clearly the better strategy. Unfortunately, most human drivers just can't pull it off.After driving with FSD for a long time, you develop a very strange kind of trust. Not that it's always right. Not that you always understand why it did what it did. But you realize: many of those heart-stopping emergency maneuvers that made you break out in a cold sweat — when you replay them later, most of them genuinely protected your safety.Over all my years of manual driving, my default in emergencies was always the reflexive hard brake. Because only by slowing down did I feel any sense of control.But FSD is different. It's not just that it has watched countless expert drivers — it's more like a driver with many sets of eyes and reaction speeds many times faster than ours. It's constantly watching all four directions, constantly computing the space, speed, and risk in every lane. That's why sometimes, it dares to execute lane escapes that we wouldn't dare attempt.Of course, this brings another problem: sometimes it's overly cautious. The infamous phantom braking from a few years ago is the classic example: tree shadows, bridge shadows, lighting changes, even road texture could trigger false alarms. But phantom braking has almost disappeared in recent years.This is the most fascinating thing about FSD. In its early days, it sometimes acted like a clumsy student. Now it behaves like an inhumanly fast-reacting entity.Because after long-term use, my trust in it doesn't come from faith — it comes from replaying every drive, time after time. The vast majority of the time, those tense maneuvers that felt excessive in the moment — looking back, they were protecting us.What will truly transform driving in the future may not be whether it can drive like a human. It's that it finally can drive unlike a human.

https://blog.sciencenet.cn/blog-362400-1536904.html

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