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> Once there's a critical mass of cars with cameras, cars could communicate road conditions automatically. I would be frightened to trust the data coming from

by agateau 12y ago

> Once there's a critical mass of cars with cameras, cars could communicate road conditions automatically. I would be frightened to trust the data coming from a random car in front of me. Inferring road condition from another car behavior sounds reasonable, using data supplied from it, not so much.

__P 12y ago
The internet works that way, and you seem to be fine with that. :\ Is it the "saftey issue"? i.e the internet can't crash you into a wall, it can only send you to rotton or steal your credit card...
- sp332 12y ago
  Wow, no. I don't trust the internet to give me real facts about elephants, let alone anything life-threatening. http://en.wikipedia.org/wiki/Wikipedia:Wikiality_and_Other_Tripling_Elephants http://en.wikipedia.org/wiki/Wikipedia:Wikiality_and_Other_T... If the equipment had some built-in tamper detection, and Google's sensors digitally signed data if they didn't detect tampering, then I might trust it enough to drive with.
etimberg 12y ago
You'll love this talk then: https://www.youtube.com/watch?v=MEYCU62yeYk https://www.youtube.com/watch?v=MEYCU62yeYk
danielweber 12y ago
You shouldn't and wouldn't rely unfailingly on what other cars merely report. If the car in front of you insists its maintaining speed while your own readings indicate its slamming on its brakes, you should assume it's slamming on its brakes. However, if the car three cars in front of you just broadcast "I'm doing an emergency stop right now", that's really valuable data. The human in your car won't know anything is wrong for at least a second. The human driver behind you would know about it before the human driver in front of you.
- ryan-c 12y ago
  > However, if the car three cars in front of you just broadcast "I'm doing an emergency stop right now", that's really valuable data. Until some asshat implements a button that sends this message for "lulz", though that would probably constitute a crime under existing law.
  - danielweber 12y ago
    That will be the most common failure mode for computer-driven cars: how easy they are to bring to a stop. (And, yes, that's probably criminal behavior.) A computer-driven car, though, wouldn't (shouldn't) just immediately slam on the brakes because of that signal. It would tighten seat belts and start slowing down, but it also would want to avoid getting rammed by the car behind it. It can make very accurate estimates about its stopping distance and use all of it.

by agateau 12y ago

__P 12y ago

The internet works that way, and you seem to be fine with that. :\ Is it the "saftey issue"? i.e the internet can't crash you into a wall, it can only send you to rotton or steal your credit card...

sp332 12y ago
Wow, no. I don't trust the internet to give me real facts about elephants, let alone anything life-threatening. http://en.wikipedia.org/wiki/Wikipedia:Wikiality_and_Other_Tripling_Elephants http://en.wikipedia.org/wiki/Wikipedia:Wikiality_and_Other_T... If the equipment had some built-in tamper detection, and Google's sensors digitally signed data if they didn't detect tampering, then I might trust it enough to drive with.

etimberg 12y ago

You'll love this talk then: https://www.youtube.com/watch?v=MEYCU62yeYk https://www.youtube.com/watch?v=MEYCU62yeYk

danielweber 12y ago

You shouldn't and wouldn't rely unfailingly on what other cars merely report. If the car in front of you insists its maintaining speed while your own readings indicate its slamming on its brakes, you should assume it's slamming on its brakes. However, if the car three cars in front of you just broadcast "I'm doing an emergency stop right now", that's really valuable data. The human in your car won't know anything is wrong for at least a second. The human driver behind you would know about it before the human driver in front of you.

ryan-c 12y ago
> However, if the car three cars in front of you just broadcast "I'm doing an emergency stop right now", that's really valuable data. Until some asshat implements a button that sends this message for "lulz", though that would probably constitute a crime under existing law.
- danielweber 12y ago
  That will be the most common failure mode for computer-driven cars: how easy they are to bring to a stop. (And, yes, that's probably criminal behavior.) A computer-driven car, though, wouldn't (shouldn't) just immediately slam on the brakes because of that signal. It would tighten seat belts and start slowing down, but it also would want to avoid getting rammed by the car behind it. It can make very accurate estimates about its stopping distance and use all of it.