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Snoop unto them as they snoop unto you

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Re: Snoop unto them as they snoop unto you

#141

Post by xkcd-sucks »

amatecha wrote: post #85
CamperBob2 wrote: post #51

Earlier quoted context omitted.

Keep right except to pass and you won't have a problem.

Seriously. Why can't people in NA follow this basic, simple protocol? It makes driving so much easier in every way. Need to slow down because your turn is coming? No problem, move over to the right. Want to actually get somewhere sometime today? Pass and then return to the lane you were in. It's so easy! Imagine actually having protocols around traffic flow, and following them! Just wait until you hear about roundabo…

In the northeast US at least, highways have 2 lanes, are narrow, congested, have short on-ramps and little/no merging area. So it is common practice to travel mostly in the left lane and leave the right lane free for people entering the highway, common etiquette to travel at 20-30mph over the speed limit and move over for faster vehicles.

Re: Snoop unto them as they snoop unto you

#142

Post by xkcd-sucks »

assimpleaspossi wrote: post #100

If only we could know what this was about without having to view the video.

I too hate videos and didn't watxh this one yet, but the slides seemed clear even without the talk:

    - Tazer/Axon makes some kind of police oriented hw/sw platform thats deployed on police bodies and cars
    - which uses BLE
    - Tazer/Axon has their own BLE MAC address prefix, which is published by the FCC 
    - The less significant bytes of BLE MAC address are a unique id for the hardware, which usually maps 1:1 with 1 officer or 1 car
    - So by listening to or probing some BLE crap you can infer cops are present close to where that MAC address prefix is, and by recording over time and area figure out movement patterns even to the level of individual hardware.
Maybe I'm missing something but it does seem like a nice hack if a little overmarkted: It is technically unremarkable but clever and practical.

Re: Snoop unto them as they snoop unto you

#143

Post by DesiLurker »

pesfandiar wrote: post #25
freitzkriesler2 wrote: post #2

I always wanted something to watch where their unmarked cars are. Speed traps are the worst.

I'd argue speeding is even worse, but to each their own.

they dont want you to stop speeding, just enough to keep generating revenue.

Re: Snoop unto them as they snoop unto you

#144

Post by throw10920 »

genman wrote: post #31
throw10920 wrote: post #21

Earlier quoted context omitted.

> Many speed limits are set lower than they need to be. ...the only correct response to which is to contact the state government and complain while continuing to respect the law. Breaking the law while remaining silent is diametrically opposed to the democratic system that the US, at least, aspires to. > need to be ...oh, and vehicle inefficiency increases superlinearly with speed[1]. Until the majority of the vehicl…

Actually not accepting the given speed limit is a form of voting against said speed limit (especially when done en masse). Yes, it is not formal, but it is voting nonetheless. If the system was really democratic and not tyrannical then it would take it into account and would not resort to more control and punishment.

You are incorrect. "Voting", by definition, involves a formal set of rules designed to best measure the preferences of voters. "Not accepting the speed limit" is illegal, dangerous, kills the environment, and does not have any sort of formal rules or any sort of mechanism for measuring consensus. It's extremely undemocratic.

Re: Snoop unto them as they snoop unto you

#145

Post by throw10920 »

survirtual wrote: post #135
genman wrote: post #31

Earlier quoted context omitted.

Actually not accepting the given speed limit is a form of voting against said speed limit (especially when done en masse). Yes, it is not formal, but it is voting nonetheless. If the system was really democratic and not tyrannical then it would take it into account and would not resort to more control and punishment.

You are correct. The users of the roads -- drivers -- are the ones who should decide what the speed limits are. The current system is a type of tyranny because the users are subject to rules without input nor representation. People seem to have a distorted view on what freedom means. If the majority of users say the speed limit is 80mph, then that is the just speed limit. Localities which decide -- for what ever reas…

> The users of the roads -- drivers -- are the ones who should decide what the speed limits are.

Correct, and there's a way to do that: by contacting your local transportation department and/or representatives.

> The current system is a type of tyranny because the users are subject to rules without input nor representation.

I don't know where you live, but in the US we have these things called "elections" where you can vote for who you want and the policies that they implement, and after the election they'll usually even listen to their constituents if they're contact on large enough scales. There's no tyranny.

> If the majority of users say the speed limit is 80mph, then that is the just speed limit.

You're intentionally conflating terms. The "speed limit" by definition is something that the state sets - it cannot be set by drivers.

> Localities which decide -- for what ever reason -- that they know better have the seeds of tyranny inside them.

This is absolutely crazy. One of the primary functions of a democratic government is to determine and then implement consensus, such as how fast cars should travel on roads. The speed limits around my area literally reflect my preferences. Taking the public's desire and implementing it is the exact opposite of tyranny.

Maybe you should come to the US, where we actually have elections and you can email your governor if you don't like the speed limit - it sounds like you live in a non-democratic country. In the meantime, you've inspired me to contact my governor and ask them to step up speed limit enforcement.

Re: Snoop unto them as they snoop unto you

#146

Post by saagarjha »

Tempest1981 wrote: post #58
abathur wrote: post #38

Earlier quoted context omitted.

Anecdata, but I regularly see people exceed the speed limit by 30mph in Houston without much intervention by police. The city has (imo) a psychotic driving culture, but is still roughly middle-of-the-road in us news and world report's ranking of most dangerous US cities to drive in. Large speed deltas are (conjecture I haven't bothered to research) probably unsafe under any conditions. Exceeding safe speeds for the c…

That's the reasoning behind setting limits at the 85th percentile speed: https://dot.ca.gov/programs/safety-programs/setting-speed-li... .

Is this actually used in practice? I feel like it’s common that “everyone speeds”.

Re: Snoop unto them as they snoop unto you

#147

Post by saagarjha »

jeffbee wrote: post #87
lib-dev wrote: post #84

Earlier quoted context omitted.

50 up 85 down is the natural way to drive. It’s a waste of fuel to brake downhill (beyond reason).

Solid argument for outlawing fossil fuels.

This is also a problem for electric vehicles, just to a lesser extent.

Re: Snoop unto them as they snoop unto you

#148

Post by Renaud »

BLKNSLVR wrote: post #91
elymar wrote: post #61

Earlier quoted context omitted.

That movie changed my life trajectory 20 years ago.

I still have trouble reconciling how terrible it is with how great it is. I still watch it once every couple of years, still love / hate it.

You guys made me watch it tonight, for some reason I missed it when it came out and never watched it.

No regrets! It was over-the-top, corny and very fun.

Teenage-me would have been totally infatuated with the glamorous hacker lifestyle!

Re: Snoop unto them as they snoop unto you

#149

Post by celegans25 »

livueta wrote: post #10
trdtaylor1 wrote: post #3

I feel like there are far better ways to determine police locations just by finding their other, more powerful, radio frequency footprints.

When I saw the headline I assumed it'd be about the P25 unencrypted metadata leakage issue (specifically Unit Link ID) described in https://www.mattblaze.org/papers/p25sec.pdf - that indeed carries a lot further than BLE

Thanks for the link, that was extremely interesting to read

Re: Snoop unto them as they snoop unto you

#150

Post by quickthrower2 »

is_true wrote: post #132
quickthrower2 wrote: post #104

Earlier quoted context omitted.

Classic cruise control only applies throttle not brakes

It can brake with the engine (clutch)

Does it? I never seen that. Usually even a slight downhill causes my CC to just not control the speed.
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