this post was submitted on 25 Nov 2024
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[–] sailor_sega_saturn@awful.systems 11 points 3 weeks ago (2 children)

If I mathed right that'd be one waymo every 350 feet of road on average. Is that a lot? It sounds like it might be a lot. Especially since self-driving cars greatest weakness appears to be driving in the vicinity of other self-driving cars.

[–] YourNetworkIsHaunted@awful.systems 9 points 3 weeks ago (3 children)

I think the idea is to solve that by networking all the self-driving cars together. I'm sure the long history of trying to get vendors to agree on a standard when they all benefit individually from the lock-in of proprietary systems has nothing to teach us about this prospect.

[–] self@awful.systems 11 points 3 weeks ago (1 children)

other than interop, the big problem I have with this is security. car modding for performance is already a big thing, and a car mod that makes other cars slow down, stop, get out of your way, or otherwise malfunction would be incredibly popular with assholes of all varieties, and car modding has many. the current state of automotive is that security is a fucking shitshow, but I can’t figure out any kind of security model for this that isn’t vulnerable to a wide variety of obvious attacks. even a perfect inter-vendor attestation chain (good fucking luck) is vulnerable to hooking an ECU (or whatever the ruggedized monitoring microcontroller unit for a magic self-driving EV is) and radio up to a variety of fake sensors and crafting inputs such that the thing starts transmitting “wait no stop here” signals to all the surrounding cars

but then again, all of this is probably intentional because it creates a privileged class of people who can afford to fuck with self-driving car networking and not worry about any associated fines, and an unprivileged class who just have to put up with everything being so much worse. in a world where you can roll smoke into a Subway with relatively few consequences (not to mention all the other horseshit Truck Guys get away with), it’s not a hard outcome to imagine.

Im sure they'll try to incorporate an LLM into the stack somewhere, leading to at least one car that's exposed to the "pretend to be a fire truck" attack.

[–] Soyweiser@awful.systems 11 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Complexity theoretical, security and latency wise this sounds like a great plan. Can wait for people being stuck in cars for days because the freeway offramps are causing livelocks. (Like the example of the waymo cars all honking at each other at the parking lots).

Wonder if they are going to use the routing solutions used in tcp and then discover that cars are heavier and slower than data and suddenly waste a lot of peoples time and money.

E: small little detail which I don't know if other countries also have it, but in the dutch traffic system, emergency services and busses (and perhaps a few hackers who really want to be in trouble with the law (but I always heard this described as a 'this exist, but we don't mess with it' system)) have a system where you can get priority at traffic lights, so they turn green faster. Wonder if other countries have this, and how much they realize this will not work for waymo systems.

[–] self@awful.systems 5 points 3 weeks ago (2 children)

a system where you can get priority at traffic lights, so they turn green faster

the US has this too (you can watch the stoplights suddenly reprioritize as an ambulance or cop car with their lightbars and sirens running approaches) and I’m honestly not sure why I haven’t ever seen it abused by some shithead with a HackRF or similar. maybe the penalties make it safer to just willingly run a red light?

[–] Soyweiser@awful.systems 5 points 3 weeks ago

There recently was a bit of a 'hackers can/are abusing this scare here' and well, I think most people don't want to abuse the system like this and understand the risks/and consequences of this. And there is also a factor of, how would you get caught? So I assume a few people who know how this would work don't actually advertise it. They might have also updated it to actually use some form of encryption. However it used to (from what I heard) not be encrypted (no idea about logging either). There is also the whole thing that messing with traffic lights vs messing with speed traps feels like a very different thing.

[–] hrrrngh@awful.systems 3 points 3 weeks ago

That kind of reminds me of medical implant hacks. I think they're in a similar spot where we're just hoping no one is enough of an asshole to try it in public.

Like pacemaker vulnerabilities: https://www.engadget.com/2017-04-21-pacemaker-security-is-terrifying.html

[–] sc_griffith@awful.systems 4 points 3 weeks ago (1 children)

here's a thought. what if we just stacked every building on top of each other and had the cars drive vertically along the outside. then you wouldn't need roads at all

[–] sc_griffith@awful.systems 4 points 3 weeks ago* (last edited 3 weeks ago)

I have a stanford degree just like this guy btw. so you have to take my idea seriously

[–] ShakingMyHead@awful.systems 1 points 2 weeks ago

Well, if my math is right, on a 50km/hr road you'd see one about every 8 seconds.