this post was submitted on 16 Mar 2025
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Mark Rober just set up one of the most interesting self-driving tests of 2025, and he did it by imitating Looney Tunes. The former NASA engineer and current YouTube mad scientist recreated the classic gag where Wile E. Coyote paints a tunnel onto a wall to fool the Road Runner.

Only this time, the test subject wasn’t a cartoon bird… it was a self-driving Tesla Model Y.

The result? A full-speed, 40 MPH impact straight into the wall. Watch the video and tell us what you think!

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[–] [email protected] 98 points 1 month ago* (last edited 1 month ago) (14 children)

Who was the idiot that removed LiDar to cut costs?

/s

[–] [email protected] 47 points 1 month ago (3 children)

Elon removed the radar. Tesla cars never had lidar. What an idiot Musk.

[–] [email protected] 17 points 1 month ago (1 children)

He did say lidar was "useless" though.

[–] [email protected] 16 points 1 month ago (1 children)

He also said the government doesn't use sql.

[–] [email protected] 3 points 1 month ago (2 children)

Bahaha, what kind of a bizarre statement is that?

Was he trying to imply the government only uses spreadsheets and nosql DBs?

Or did he think it was necessary to point out that your average government employee isn't writing their own SQL to grab data they need?

[–] [email protected] 9 points 1 month ago

Someone said something he didn't like so he blurted out the first ignorant thing that he thought of, as usual.

[–] [email protected] 3 points 1 month ago

Even then, that's not really correct. People grab data through sql queries all the time. Mostly because all the front ends are trash.

[–] [email protected] 10 points 1 month ago (2 children)

It was removed because it was giving false positives. They should have upgraded it with lidar but decided to just remove it.

[–] [email protected] 10 points 1 month ago

Yeah, it might drive straight into a wall but at least it isn't returning false positives!

[–] [email protected] 6 points 1 month ago (1 children)

It was removed because of supply chain issues.

[–] [email protected] 2 points 1 month ago

That would make sense if they put it back after, but they didn't

[–] [email protected] 9 points 1 month ago* (last edited 1 month ago)

Tesla had camera+radar+sonar, and that wasn't their own tech - they used mobileye EyeQ back then. When they switched to in house tech they gradually ditched the radar and sonar which made no sense to me. But at the time I saw their lead say in an interview that this is superior and I believed. not anymore.

they said doing so cut costs but obviously lidar/radar/sonar only gets cheaper over time, let alone the extra r&d costs because a vision only system is much more difficult to develop.

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