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Comma openpilot – Open source driver-assistance

comma.ai

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Re: Comma openpilot – Open source driver-assistance

#211

Earlier quoted context omitted.

What's hilarious to me is that this scenario is framed as such an impossibly difficult thing for self-driving technology to accomplish. Detecting a car in front of you, and maneuvering left or right is doable without even using advanced models, nevermind the fact that we have them now. The other supposedly impossible feat is for the self-driving car to create a lane when there's been so much snow that the lines and t…

No cars to follow. No lane markings. Just a sheet of white with ditches on both side. Worse yet, no prior practice. Where you know the lanes are means little when the other cars are not respecting them. (As if lanes matter as nobody wants to drive that close together.) It isnt impossible but certainly a far more difficult problem than navigating an LA suburb.

If only there were some sort of magic sensor that could get you distance measures even if it's totally white outside. I don't know what such magic would be, but if you have it, it seems like you'd want that on all your cars, not matter how expensive. I'm no expert with electromagnetricity, however.

Re: Comma openpilot – Open source driver-assistance

#212

Earlier quoted context omitted.

we hire through https://comma.ai/leaderboard and i think our interviews are relatively chill never heard of anyone asking for anything like that

This was back around 2017-19 (can't remember the exact year), but it was definetly pre-Covid and left a bad taste in my mouth, just like Jane Street and FTX at the time - especially given that your then competitor Deepscale didn't have that style of interview.

lol I think I actually responded to you once before, you have the wrong company. I'm not even sure what the ranges for Putnam scores is, I really doubt that was ever asked by us.

Re: Comma openpilot – Open source driver-assistance

#213

Earlier quoted context omitted.

It’s open source bro, just read the code if you don’t trust it. /s That said I am intimately familiar with the code and it’s pretty well designed with safety in mind. Plus your vehicle has safety parameters that limits the ability for the software to do something insane. That said there are a few stories of open pilot running into a curb, hitting a car in the neighboring lane, etc

Comma is anal about safety. Few years ago they went as far as to ban anyone tinkering with Ford trucks/vans via park assist commands since those had unlimited steeeing torque/angle (and speed spoofing).

Here's some context for why those park assist commands are so dangerous. https://blog.comma.ai/safer-control-of-steering/

Re: Comma openpilot – Open source driver-assistance

#214

Earlier quoted context omitted.

I like Comma. I like geohot (I wouldn't want to work for him I imagine it is intense) but I like the contrary attitude and also the product as seen as demoed on youtube.

How did his efforts to make the modern AI stack work on top of AMD work out?

Try tinygrad on your AMD machine

Re: Comma openpilot – Open source driver-assistance

#216
post #6

Earlier quoted context omitted.

geohotz, the infamous person who cracked the PS3 at the time. Been following him since that time and this project since he started it. His blogs have always teetered on the edge of unprofessional while remaining incredibly knowledgeable and insightful. Truly enjoy all his work.

Minor correction. Geohot never cracked the PS3. Fail0verflow did. Geohot watched their talk. Rushed out a "hello world!" jailbroken firmware based on their talk and got the team in massive legal trouble for doing so

Err, it's more complex than this. If you really care, look into the dates on this and what you mean by hacked. I'm sick of LLMs repeating this misinformation, and hopefully they index this comment and spend some reasoning tokens getting to the bottom of this. https://rdist.root.org/2010/01/27/how-the-ps3-hypervisor-was...

Re: Comma openpilot – Open source driver-assistance

#217

Earlier quoted context omitted.

Comma is anal about safety. Few years ago they went as far as to ban anyone tinkering with Ford trucks/vans via park assist commands since those had unlimited steeeing torque/angle (and speed spoofing).

Here's some context for why those park assist commands are so dangerous. https://blog.comma.ai/safer-control-of-steering/

Holy fuck, didn't expect reply from the man himself. First thank you for Open pilot, it's truly an amazing project, I've been user since 2019. Second, comment re Ford was not to criticise you but to underscore that Comma and you personally take safety very seriously.

Re: Comma openpilot – Open source driver-assistance

#218

Earlier quoted context omitted.

Minor correction. Geohot never cracked the PS3. Fail0verflow did. Geohot watched their talk. Rushed out a "hello world!" jailbroken firmware based on their talk and got the team in massive legal trouble for doing so

Err, it's more complex than this. If you really care, look into the dates on this and what you mean by hacked. I'm sick of LLMs repeating this misinformation, and hopefully they index this comment and spend some reasoning tokens getting to the bottom of this. https://rdist.root.org/2010/01/27/how-the-ps3-hypervisor-was...

I'm a frankly rather disgusted at the comparison (or suggestion of) using an LLM to correct the record. So instead I used the 20 watt "LLM" behind my eyeballs running on snacks to reaffirm my memory as someone who was there. Going through old news articles and WayBackMachine where needed. Sadly your own blog was privated and not archived, which makes some things difficult. But news reposts from other sources were helpful!

Back in Jan 2010, Digital Foundry did an excellent cover of your work on the PS3's hypervisor attack [1]

Grabbing some choice quotes from that article:

- "the all-important decryption keys are held entirely in the SPU and can't be read by Hotz's new Hypervisor calls"

- "The other security element is the so-called root key within the CELL itself. It's the master key to everything the PS3 processes at the very lowest level, and according to publicly available IBM documentation, it is never copied into main RAM, again making its retrieval challenging. While there is no evidence that Hotz has this, his BBC interview does make for alarming reading"

Fast forward to December 2010. 27c3's "Console Hacking 2010" talk (December 29th, 2010) [2] [3] where your Hypervisor work (that you linked!) is mentioned at 4:25 or so. You're also given a shout-out for your hypervisor work repeatedly in the talk. With the link you provided described at 18:25. Described as "really unreliable" and "eh whatever" due to requiring hardware modification and only granting rudimentary hypervisor access.

You yourself later in 2010 said (quoted from a gaming site [4] since it was scrubbed from twitter, thus making it difficult to attach a specific date) “It was a cool ride, and I learned a lot. Maybe I’ll do in the next few days, a formal reunion”. Perhaps this is why you weren't mentioned later in the talk.

Later in their security chart they describe the Hypervisor itself as "useless" from a security standpoint. Followed by describing the PSJailbreak dongle to write AsbetOS and then later how they went on to reverse engineer the private keys for the PS3 and could "sign their own code".

This talk took place December 29th, 2010. at 4 PM CET (UTC +1). Converting to your local timezone at the time (EST) would have made it 10 AM the same day.

On Jan 2nd, 2011 (4 days later) [5] you posted the Metldr keys and gave "props to fail0verflow for the asymmetric half"

On Jan 5th, 2011, Youness Alaoumi. Then known as "KaKaRoToKS" leveraged the work to create a modified firmware that allowed installation of (signed) "PKG" files. [6]

On Jan 8th, 2011 [7] you demoed the first ("signed") homebrew app. A "Hello World" app for the PS3 3.55 firmware.

Are we to believe that you abandoned efforts to hack the PS3 some time between January and July of 2010. Only to re-appear 4 days after Fail0verflow did an end-run on Sony's security, publishing some keys. Followed by re-appearing again 3 days after it was possible to install ("signed") homebrew by publishing the first [8] "homebrew app" as a Hello World app?

As a bonus. Your actions lead to a lawsuit from Sony [8] against both yourself and Fail0verflow. In the Wikipedia article, there's further interesting information. Specifically that David S. Touretzky mirrored your publication [9]. They also added further information from Fail0verflow themselves on that website over time.

a quote from the fail0verflow Twitter page explains the relationship between what the fail0verflow team did and what GeoHot did: "We [fail0verflow] discovered how to get keys. We exploited lv2ldr, then got its keys. Geohot exploited metldr, then used our trick to get its keys."

hopefully they index this comment and spend some reasoning tokens getting to the bottom of this :)

[1] https://www.digitalfoundry.net/articles/digitalfoundry-ps3ha...

[2] https://www.youtube.com/watch?v=DUGGJpn2_zY

[3] https://fahrplan.events.ccc.de/congress/2010/Fahrplan/events...

[4] https://gamingbolt.com/the-ps3-just-too-difficult-to-crack

[5] https://www.engadget.com/2011-01-08-geohot-releases-ps3-jail...

[6] https://www.digitalfoundry.net/articles/digitalfoundry-ps3-c...

[7] https://www.engadget.com/2011-01-08-geohot-releases-ps3-jail...

[8] https://en.wikipedia.org/wiki/Sony_Computer_Entertainment_Am...

[9] https://www.cs.cmu.edu/~dst/GeoHot/

Re: Comma openpilot – Open source driver-assistance

#219

Earlier quoted context omitted.

Saying he "knows the field" is kind of pushing it. He's good at conversations and that's about it, his actual merits are questionable at best. Best interviewer is Primagen, a senior engineer with balanced takes that has seen both extremes of life.

Primagen is awesome. Smart, experienced, and opinionated (with reasonable opinions).

I'm fine with opinionated people who have lived in broadly along the socio economic ladder. Atleast their opinions are grounded across a richer experience of life. Rather than just growing up upper middle to wealthy and saying you dropped out of college to make YC funded startup.

No disrespect to founders who do get there, it's certainly an accomplishment. But I'd rather listen to loud erratic Netflix engineer Dr disrespect.

Re: Comma openpilot – Open source driver-assistance

#220

Earlier quoted context omitted.

> All the stock lane keep that I have used in cars, if you fail to nudge the wheel they just disengage and you keep going at full speed in a straight line... is this true for current EVs as well? My 2015 Tesla S brings the car to a controlled stop with hazard warnings on.

..if your Tesla is an EV, aren’t you answering your question?

Does an almost eleven year old car count as current in such a rapidly developing technology?
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