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Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Sunday October 30, 2022 @05:16PM (#33398801)
You're right to note the advantages of lidar and (narrow range of) contrast problem for cameras (they arent eyes.) This is why the Uber human driver shouldn't have trusted the machine at night, in particular.

But you still have to address his system argument, which was that adding geegaws that added little would actually increase overall risks along the supply chain (plus maintenance) while distracting the team and adding more risk that way, for very little apparent (but only apparent) gain. The team does believe that they'll get to better than human driving, and do that without lidar.

Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Marazan on Sunday October 30, 2022 @07:29PM (#33400157)
They cannot actually believe that.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by mensetmanusman on Sunday October 30, 2022 @08:19PM (#33400521)
LiDAR has its own false positives that haven’t been solved, so it’s possible they believe that.

I certainly was skeptical until alphago and alphafold happened.

Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @12:52AM (#33402209)
That's especially amusing considering how if you view Go as a visual problem, it's beyond trivial compared to what is required to safely operate a motor vehicle (even just visually).
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @06:14AM (#33403844)
Yikes. I'd be a lot better Go player if it was just a matter of seeing the board.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @10:28AM (#33406195)
It is yikes - what's shocking is that you seem to be advocating for that same exact perspective for... driving a car???
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @12:22PM (#33408019)
Nope. There's definitely mapping, and then, much, much more. You're stuffing words in my mouth.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @12:52PM (#33408623)
Not sure if I'm stuffing so much as removing the bluster
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @04:13PM (#33412263)
Ad hominem, but no content.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Sunday October 30, 2022 @08:24PM (#33400560)
There's a new article showing up just today at HN detailing more securing supply lines (for libraries and much more) re software; it's a deep problem, not a non-existant problem. But it doesn't have to be malicious actors at work. SpaceX lost a rocket because a supplier's product wasn't built to spec. SpaceX makes that part themselves now, and highly favors vertical integration, which just means making your own sh*t. Just maintaining documentation is a bear. There's another article on HN today detailing an Air Astana near crash because of "improvement" maintenance changes (with poor documentaion) that went very badly wrong.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @12:04AM (#33401920)
"But you still have to address his system argument"

Do you? It's his argument that he needs to substantiate... it's not my burden to confirm his conjecture. And even looking at it on its face... it's clearly self-serving bs. It doesn't seem to be a problem for any other car company, so I'm a bit confused as to why it's such a problem for Tesla. Of course, the obvious answer is that Tesla is cheap and doesn't want to pay to have a team that would have sufficient bandwidth to do what every other car company and self-driving system is doing...

Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @12:27AM (#33402074)
You still have to address the argument he makes that the net effect on risk of keeping the lidar was in fact negative. You're just gainsaying it. That's not a contribution to any discussion.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @12:40AM (#33402151)
I have no doubt that might be the case; as I already explained, it's obviously due to the fact that they are cheap.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @06:13AM (#33403834)
So you're again gainsaying his explanation, but gainsaying says nothing that helps anyone else make a decision. How are the rest of us who aren't psychic to know he's lying?
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @10:30AM (#33406235)
I'm not gainsaying his explanation. You don't seem to understand that a function of his explanation is what Tesla is willing to invest and their ability to recoup in a sale of the car.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @12:19PM (#33407974)
Oy.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by freejazz on Monday October 31, 2022 @12:54PM (#33408661)
Pot, kettle, black.
Re:Andrej Karpathy: Why Tesla Removed Radar and Ultrasonic S... by Nomentatus on Monday October 31, 2022 @04:12PM (#33412243)
Circling, circling, circling - but no specific analysis, citations, or criticisms of Tesla's stated logic. Gainsaying isn't a positive contribution to a conversation.