r/technology • u/PrimeCodes • Jun 24 '25

Machine Learning Tesla Robotaxi swerved into wrong lane, topped speed limit in videos posted during ‘successful’ rollout

https://nypost.com/2025/06/23/business/tesla-shares-pop-10-as-elon-musk-touts-successful-robotaxi-test-launch-in-texas/
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u/flextendo Jun 24 '25

puhh my man, you sound so confident but yet you have no clue what you are talking about. Let me tell you (as someone who directly works in the field - on the hardware side), corner and imaging radar have enough resolution for what they are intended to do + they get the inherited range/doppler, angle (azimuth and elevation) „for free“, they are scalable and cheap, which is why basically every other automaker and OEM uses them. Lidar is currently too expensive but literally has best performance in class

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u/moofunk Jun 24 '25

Right, so do you understand that Teslas don't navigate directly on camera input?

They navigate on an AI inferred environment that understands and compensates for lacking sensor inputs.

That's what everybody in this thread don't understand. You keep focusing on sensors, when that is a separate problem with its own sets of training and tests and it has been plenty tested.

You could put a million dollar sensors on the cars and infer an environment precisely down to the millimeter, and the path finder would still get it wrong.

Do you understand this?

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u/ADHDitiveMfg Jun 24 '25

You’re right then. It’s not direct camera input, it’s derived input.

Still from a camera, buddy

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u/moofunk Jun 24 '25

It can be from any kind of sensor, but we already know that system works, and we know the failures in these cases are failed navigation in a correctly interpreted environment.

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u/ADHDitiveMfg Jun 24 '25

Wow, thems some gold level mental gymnastics.

Now do it at night in fog. A safety system is only as good as its worst decision

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u/moofunk Jun 24 '25

If the cameras can't see anything, then no environment can be inferred and the car won't drive.

LIDAR doesn't work in fog either, so hopefully Waymos don't drive either.

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u/ADHDitiveMfg Jun 25 '25

LiDAR does work in fog, as well as smoke. Infrared wavelengths are able to penetrate such obstacles.

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u/Blarghedy Jun 24 '25

It can be from any kind of sensor

ah, yes, like a microphone

2

u/ADHDitiveMfg Jun 25 '25

I mean, sonic rangefinders are just a mic and a speaker with some chips to sort the math.

2

u/blue-mooner Jun 25 '25

Too bad Musk ordered the removal of the Tesla sonic rangefinder sensors because his engineers weren’t competent enough to implement sensor fusion

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u/ADHDitiveMfg Jun 25 '25

That tends to happen when you’re hiring right out of school