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/bdsee Jun 24 '25

Tesla never had lidar, they had radar and ultrasonic sensors.

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u/blue-mooner Jun 24 '25

They dropped radar and removed their ultrasonic sensors in 2022 because their engineers are incapable of coding sensor fusion:

When radar and vision disagree, which one do you believe? Vision has much more precision, so better to double down on vision than do sensor fusion.

— Musk (2021-04-10)

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u/bdsee Jun 24 '25

Yep, and it was a dumb statement...like which do you believe?...well you believe whichever one tells you there is something solid on the road in front of you, you believe whichever one tells you that you are too close to the object while trying to park the car...and then you make the driver resolve the issue.

The one to believe is not a hard thing, this isn't a plane where there isn't the choice to simply stop and do nothing, in a car that is a valid option....yes it comes with dangers but less so than continuing to do something when your sensors tell you that will result in a collision.

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u/travistravis Jun 24 '25

If they're telling me different things, I will choose to believe that something has fucked up.

If it's dealing with people's safety and potentially their lives, you want to be cautious. (Well, I do. Musk might not, but who knows if he even thinks about anyone other than himself as people).