Yeah, I would also guess about that time. Run away, jump out of the train, duck behind some larger wall, pray.
Oh, I see how you could think that, without context. That's in fact not what I wanted to say. I meant that pretty literally. The infrastructure of course knows where the train is. > Trains are still not able to assess…
> You are spreading misinformation then. ? > because the problem is with how PHP processed the request well before the configuration or your PHP code was executed. That's what I wrote? You can't do anything once PHP…
What? I never claimed it was "advice"? I explained how other people could have arrived at the conclusion that there can be worse things than a single language interpreter being vulnerable to a unconditional RCE. Were…
The exact comment I answered to. https://news.ycombinator.com/item?id=50287160
If solar time does not matter, why do you care about at when number you get up, go to work, come back and get back to sleep? This would be even more ridiculous. People care about the time, because it's a proxy for sun.
Because the opposite is true. Schedules used to be earlier in the past. People simply want them later, despite stating otherwise.
There is no absolute value of when to do things. People used to get up at 6am or even earlier. Over the past century everything became several hours later, so the opposite of the stated preference of doing everything an…
You can do this. I don't know how, and I don't think it's a feasible use of my time, to find out how. It's obviously computable on a Turing machine, because they were able to patch PHP.
>> Yeah, but how do you distinguish that? > By enumerating the tracks? How do you distinguish that the <2km away detected moving train runs on your track on not on the one directly besides you? > Trains are captive to a…
None. Like I wrote "I don't know, I hope my provider patched it properly."
You can and do have redundancy in the central node already. Also that's not what failed here. > In this collision, both trains were on the same track. Yeah, but how do you distinguish that? So when I understand you…
I was only talking about the general problem domain, not about this specific location. The current safety system is also not was has caused this, likely. Or rather it has caused this by it's availability, not by it's…
In theory yes. In practice, I don't know, I hope my provider patched it properly.
> They are not just a button and lever pusher. I agree. But the decision whether all switches are locked in the correct position and that the track is clear, is not one that he is supposed to make and he also doesn't…
So that's a lot of questions, that I all can't answer in full. > Would you mind sharing some more of the why it is still an open problem? Because for train sensors, there is a small drift which accumulates too much,…
> I am very curious to hear why you thought it was overblown. Not having made the claim (took down my website too), but because PHP is not connected directly to the network. While you cannot prevent PHP from being…
Except that car vs. rail deaths per 100 million person km is 0.7 vs. 0.035 and per 100 million person hours 25 vs. 2 (https://etsc.eu/transport-safety-performance-in-the-eu-a-sta... or…
As far as I am aware, there has been no non-supervised train in a general train network. (They exist in closed systems.) However whether the train is self-driving is really not the issue here. In current railway safety…
PZB is from 1934. Arguably always prioritizing deploying the most modern system on the highest profile lines, is what prevents us from properly rolling out the basic safety systems everywhere.
Yeah, that's a solved problem. Did you even read my whole comment? I answered why "just use the system from self-driving cars" wouldn't work and in fact would be less safe than the current system.
> The train driver's job is to say: "it's red, I'm no moving, not my problem, you make it green if you want me to go" A written movement authority is a signal as well in railway terms. It's more like "I don't trust your…
No, he would get fired, because that's not his job. It would be like the machine engineer on a race track refusing to fix the ignition, because somewhere on the track he doesn't see, the asphalt might be broken.
The person who controls whether the light shows red or green and gives verbal authorization is the same. It's both a tool, to transmit the same information.
> As we also know from the aviation industry The aviation industry operates like the railway industry ~1920 (somewhat by necessity). > You wouldn't drive your car into a lake just because your satnav tells you to, would…
Yeah, I would also guess about that time. Run away, jump out of the train, duck behind some larger wall, pray.
Oh, I see how you could think that, without context. That's in fact not what I wanted to say. I meant that pretty literally. The infrastructure of course knows where the train is. > Trains are still not able to assess…
> You are spreading misinformation then. ? > because the problem is with how PHP processed the request well before the configuration or your PHP code was executed. That's what I wrote? You can't do anything once PHP…
What? I never claimed it was "advice"? I explained how other people could have arrived at the conclusion that there can be worse things than a single language interpreter being vulnerable to a unconditional RCE. Were…
The exact comment I answered to. https://news.ycombinator.com/item?id=50287160
If solar time does not matter, why do you care about at when number you get up, go to work, come back and get back to sleep? This would be even more ridiculous. People care about the time, because it's a proxy for sun.
Because the opposite is true. Schedules used to be earlier in the past. People simply want them later, despite stating otherwise.
There is no absolute value of when to do things. People used to get up at 6am or even earlier. Over the past century everything became several hours later, so the opposite of the stated preference of doing everything an…
You can do this. I don't know how, and I don't think it's a feasible use of my time, to find out how. It's obviously computable on a Turing machine, because they were able to patch PHP.
>> Yeah, but how do you distinguish that? > By enumerating the tracks? How do you distinguish that the <2km away detected moving train runs on your track on not on the one directly besides you? > Trains are captive to a…
None. Like I wrote "I don't know, I hope my provider patched it properly."
You can and do have redundancy in the central node already. Also that's not what failed here. > In this collision, both trains were on the same track. Yeah, but how do you distinguish that? So when I understand you…
I was only talking about the general problem domain, not about this specific location. The current safety system is also not was has caused this, likely. Or rather it has caused this by it's availability, not by it's…
In theory yes. In practice, I don't know, I hope my provider patched it properly.
> They are not just a button and lever pusher. I agree. But the decision whether all switches are locked in the correct position and that the track is clear, is not one that he is supposed to make and he also doesn't…
So that's a lot of questions, that I all can't answer in full. > Would you mind sharing some more of the why it is still an open problem? Because for train sensors, there is a small drift which accumulates too much,…
> I am very curious to hear why you thought it was overblown. Not having made the claim (took down my website too), but because PHP is not connected directly to the network. While you cannot prevent PHP from being…
Except that car vs. rail deaths per 100 million person km is 0.7 vs. 0.035 and per 100 million person hours 25 vs. 2 (https://etsc.eu/transport-safety-performance-in-the-eu-a-sta... or…
As far as I am aware, there has been no non-supervised train in a general train network. (They exist in closed systems.) However whether the train is self-driving is really not the issue here. In current railway safety…
PZB is from 1934. Arguably always prioritizing deploying the most modern system on the highest profile lines, is what prevents us from properly rolling out the basic safety systems everywhere.
Yeah, that's a solved problem. Did you even read my whole comment? I answered why "just use the system from self-driving cars" wouldn't work and in fact would be less safe than the current system.
> The train driver's job is to say: "it's red, I'm no moving, not my problem, you make it green if you want me to go" A written movement authority is a signal as well in railway terms. It's more like "I don't trust your…
No, he would get fired, because that's not his job. It would be like the machine engineer on a race track refusing to fix the ignition, because somewhere on the track he doesn't see, the asphalt might be broken.
The person who controls whether the light shows red or green and gives verbal authorization is the same. It's both a tool, to transmit the same information.
> As we also know from the aviation industry The aviation industry operates like the railway industry ~1920 (somewhat by necessity). > You wouldn't drive your car into a lake just because your satnav tells you to, would…