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Andrej Karpathy leaves Tesla

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Re: Andrej Karpathy leaves Tesla

#271
post #169

Earlier quoted context omitted.

I don't think it's a scam, it's just a really hard problem that will take years or decades longer than originally promised.

ah, the theranos defense

The Theranos playbook would be plugging Cruise under the hood and saying it's Autopilot or FSD controlling the car.

Re: Andrej Karpathy leaves Tesla

#272

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This assumes that roads are used exclusively by autonomous vehicles, when our roads are not used exclusively by motor vehicles to begin with.

> “This assumes our roads are used exclusively by autonomous vehicles” I not only assume it, I say it out loud: “[fully autonomous, …] maybe even majority homogenous, partly heterogenous?” > “When our roads are not used exclusively by motor vehicles to begin with.” I’m not following what you’re saying here in the context of the earlier clause. If you mean not used exclusively by autonomous vehicles, yes, and that’s w…

I mean bicycles and pedestrians

Re: Andrej Karpathy leaves Tesla

#273
post #144

Earlier quoted context omitted.

> If they could lose their obsession with self-driving and just focus on their incredible cars, they'd still make money. They may want to think about that strategy soon. Model 3 is starting to seem dated (not to mention Model S, which is ten years old). There are very competitive alternatives on the market now that have strengths where Tesla is weak, and which are not especially weak in the areas Tesla is strong.

In what sense is the Model 3 seeming dated? It's still one of the best electric cars on important measures like range and efficiency. It also has access to hands down the best charging network and is well loved by its owners, despite the well-documented problems.

Eh, looks dated to me. But I had an early one for a while. They're everywhere (at this point I lump 3 & Y together since for all practical purposes they're the same design).

Range is okay, but Tesla overestimates. Mine lost about 1.2 miles of range for every mile driven, and as a practical matter it was more of a 200 mile car than a 300 mile car, unless you really wrung it out. There are a bunch of 300+ mile EVs either on the roads now or releasing in the next few months. The only Tesla that has a range worth bragging about is the 400 mile version of the Model S. I do look forward (hopefully!) to regular cars having that kind of range, instead of just the top end ones.

I personally think Tesla is playing with fire leaving the quality so low. Well over half of all Model 3s have to return for repair within the first month. That's terrible. Recall how long it's taken other domestic manufacturers to regain any kind of reputation for quality, and even then many people will never believe they make good cars. For what a Tesla costs, people have high expectations. They're enjoying fad status right now, and that's great, but there is no shortage of Tesla owners already who've sworn off ever buying another one.

Re: Andrej Karpathy leaves Tesla

#274
post #265

Earlier quoted context omitted.

> Does anybody seriously think Karpathy would step down if FSD was really close to be released ?? Life is not only about work. I stepped down from the company I funded after 14 years, it never stopped growing after that. Some people just get bored after doing one thing for a long time and want to explore other areas, especially if they always had broad interests. > It really starts to feel like Tesla is a huge fraud…

This is what I say when people call Musk a showman and a fraud. I say that I must be imagining that I’ve actually been driving an EV for the past four years. I must’ve dreamt having to drive only 2 hours out of a 12 hour road trip. Bugs? Yea. Some really dangerous ones we all have read about. Manufacturing defects? Yup! Missed Deadlines? Hell yeah. But a fraud? Nope.

You have a point.

But did Theranos customers were thinking they were a fraud ? Nope - they were getting their blood test results done, although not in a way Theranos advertised.

Of course the Tesla cars are not a fraud - they are actually pretty good - and for a long time they were the only EV out there. But it's no longer a case, and they are just becoming one of the 50 EV car makers out there.

And Elon seems to know it - that's why he's insisting that the entire company insane valuation is tied to FSD, or whatever other futuristic product he can imagine.

What I mean is that it's a fraud because it's an (maybe a bit above) average EV car making company, but it's CEO and the company itself insists it has extremely advance technology and products - which for now, doesn't exist. As a result, it's $ valuation is higher than most other car makers combined.

Re: Andrej Karpathy leaves Tesla

#275
post #83

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> Things like traffic signals that actively communicate their status to nearby robot cars (more than just a red lamp that can be occluded by weather, other vehicles, or mud on the camera lens). Or lane markings that are more than just reflective paint, but can be sensed via RF. Rules around temporary construction that dictate the manner of signage and cone placement that the robot cars can understand. The cones might…

> You could cause absolute chaos by driving down the road broadcasting false messages. I’ve personally tested creating a fake toad sign and my tesla reads it as a real sign just fine. I wonder what happens to autopilot on a 70mph freeway when it encounters a 5mph limit sign…

Bad bad things. I've had my Tesla on a highway either lose GPS precision and believe I was on an adjacent local road..

It immediately reduced speed from 60mph to 25mph .. aggressively.

This falls into a pattern of Tesla autopilot/NoA where it just doesn't seem to have much memory or foresight.

For example the car is driving itself on the highway, it knows it's been on the highway, for 20 minutes. I am not even in the exit lane, it knows what lane I am in. How could it think I am suddenly on the local road below the highway based solely on the GPS pin movement in the span of a second, without having moved to the exit lane and gone down the exit ramp?

For an example of lack of foresight - the car will happily speed towards an obvious semi-distant slowdown right until it needs to aggressively break from 60mph down to 30mph as it approaches following distance of the nearest car. I also find it can get really weird in stop&go traffic, not easing into speed, down to a stop very well as if it has only GO or STOP.

Re: Andrej Karpathy leaves Tesla

#276

Earlier quoted context omitted.

Because self-driving has a bunch of tricky edge cases and most of them will kill people. Problems with hundreds of important edge cases cannot be solved by simply throwing more training data at the problem; that's how you solve AI problems in a "dumb" manner, and it works for lots of problems (like recognizing dogs in images) -- but not for self-driving. To solve the self-driving problem we need "smart" A.I., which m…

I remain convinced that "real" self driving (as in: go ahead and sleep in the backseat) will never happen without changes to road infrastructure and possibly some sort of segregation between robot-driven cars and people-driven cars. Things like traffic signals that actively communicate their status to nearby robot cars (more than just a red lamp that can be occluded by weather, other vehicles, or mud on the camera le…

You can get a self driving car ride and sleep in the back in Arizona, from Waymo. If you're on a special list, it sounds like you can do it in SF today with Cruise. Your claim is manifestly false.

Re: Andrej Karpathy leaves Tesla

#277

Earlier quoted context omitted.

You are correct. A Masked Language Model architecture would work very well here. Train it on labeled data and then bidirectionally infer missed spots. That's fun. We should join their AI team.

I don’t think I would do very well under Elon’s management style ha - the whole butts-in- seats from 8-6 thing is basically a dead end for me (personally). I’m not sure what architecture they use, but they do indeed already have a pre trained “auto-labeler” that their annotators use. My understanding is that due to hallucinations from the model and the risks involved with driving, they still need to be vetted manuall…

Makes sense. Fortunately, scale is less of a problem for the autolabeler, so they can put a lot of processing power on this step. But yeah, they will need human labelers for the edge cases where the model is unsure. I wish Tesla would publish their results so we could understand what they are doing and how much it is improving.

Re: Andrej Karpathy leaves Tesla

#278

Earlier quoted context omitted.

I ended up selling mine because the build quality started getting on my nerves. Misaligned panels that are "within spec" or interior rattles that make the ride completely unpleasant (at only 10k miles). The tech is all right, and I got to try auto pilot at a discount. Unfortunately the phantom braking made AP completely useless with passengers who would freak out and complain. However, when it worked it was quite nic…

Now I'm curious, what did you replace it with and which model did you have?

Model 3 performance and replaced by a Honda

Re: Andrej Karpathy leaves Tesla

#279

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Yeah, but Google's vision + lidar tech also doesn't seem any better at solving it either. They have been working on this problem the longest and they aren't even confident enough to produce a product with it. Google is probably the leader in AI and AI research. They are also the leader in data and mapping. They have billions of cash to play with. Yet it seem like they haven't gotten any closer at solving this problem…

Zoox has solved it.

Has Zoox even gotten the permits to do fleet-scale driverless testing? Last I heard, they were still limited to 2 vehicles on specific streets in foster city. Doesn't seem very solved.

Re: Andrej Karpathy leaves Tesla

#280
post #32

Earlier quoted context omitted.

He did not start it. He did a hostile takeover and revised the history of Tesla so he could be a cofounder.

I’m no expert on Tesla’s history, but I’m sure it was private back then, and hostile takeovers of private companies are not really a thing.

Correct, yeah. Tesla was founded in mid 2003, Elon became the largest shareholder in early 2004, became the CEO in 2008, and then the company IPOd in mid 2010.[0]

The comment you were replying to definitely seemed quite a bit incoherent with their personal take on what hostile takeovers actually mean.

0. https://en.wikipedia.org/wiki/Tesla,_Inc.

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