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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[–] Polderviking@feddit.nl 7 points 3 hours ago

I remember elon saying something along the lines of his camera system being just as good and they thusly don't need to employ things like LIDAR.

[–] RambaZamba@feddit.org 46 points 15 hours ago (1 children)

Things that happen when you rely exclusively on optical sensors, i.e. cameras. But that's just cheaper, more money for Nazi Elon.

[–] Inkstainthebat@pawb.social 5 points 5 hours ago (1 children)

Are we reeeeally sure optical sensors with fast image recognition software are cheaper than LiDAR?

[–] Tzig@sh.itjust.works 4 points 3 hours ago

The hardware is, which is the important part at scale: even if the code is 10x more expensive when you sell millions of the car it becomes pennies/car

[–] Jeffool@lemmy.world 14 points 14 hours ago* (last edited 14 hours ago) (2 children)

This would be hilarious if it weren't for shitty cars causing deaths.

That said, I always wondered why we don't find a system like RFID that could penetrate concrete and asphalt, and plant passive receivers in roads? We re-pave roads so damn often in this country (the U.S.) it seems like we could've knocked it out in the past couple of decades, minus our most rural areas.

I know RFID itself isn't strong enough, but I imagine that would've been an easier problem than figuring our complete self driving. Not to mention making GPS a secondary system for U.S. road travel in most cases.

Maybe it's just a dumb shower thought?

[–] JustAnotherKay@lemmy.world 1 points 27 minutes ago

What you're describing is just a higher level of autonomy. If I remember correctly, you're describing level 3 whereas Tesla's are level 2. I believe VW made a level 3 proof of concept mini bus back around 2020 but the legislation doesn't allow for the sensors in the road yet because... Oh that's right. A level 2 car manufacturer owns like half the world right now which means nobody is allowed to innovate or do better than him. Huh, that sucks.

[–] bufalo1973@lemm.ee 7 points 14 hours ago (2 children)

I have another idea: echolocation and laser measurement.

[–] towerful@programming.dev 5 points 5 hours ago

Echolocation is specifically audio based.
Lidar is a similar technique, but much more accurate and precise.
Project a grid of laser beam, read when the laser bounces back, you know the distance to that part of the grid.

[–] Jeffool@lemmy.world 4 points 12 hours ago (1 children)

I don't know the value of echolocation in this case, as I'm generally ignorant here, but it's straight wild to me that they went purely on visuals.

[–] dan@upvote.au 8 points 11 hours ago* (last edited 11 hours ago)

Tesla used to also have radar (and maybe lidar?) but they removed it as a cost cutting measure. If you ever see older videos of a Tesla slowing down or stopping due to a potential collision a few cars ahead, that's from before they switched to only relying on cameras. The collision avoidance was significantly better back then.

[–] SirFasy@lemmy.world 45 points 18 hours ago (1 children)

Turns out having radar is rather important..

[–] KayLeadfoot@fedia.io 31 points 18 hours ago

It's dirt cheap, too. If this was a cost-cutting measure, it was a thoroughly idiotic one. Which feels like the mark... of a certain someone I can think of

[–] Yoga@lemmy.ca 21 points 18 hours ago

Insurance fraud is going to bankrupt Tesla robotaxis faster than an incompetent CEO ever could.

There will be too many ways to defeat the cameras and not having LiDAR unlike the rest of the industry may prove to be found to be a failure of duty of care.

[–] magnus919@lemmy.brandyapple.com 81 points 23 hours ago (2 children)

I remember Elon foolishly saying his cars don’t need radar or lidar. Even software-disabling radar in cars that already had the hardware.

[–] gmtom@lemmy.world 17 points 15 hours ago (1 children)

Not even just his cars, he thinks the MILITARY, doesn't need radar and can just use cameras to spot and track stealth fighters.

He's a fucking lunatic.

[–] towerful@programming.dev 2 points 5 hours ago

As an augmentation, the ability to spot and track objects visually would be amazing.
But then planes just have to fly above 10k ft, and pretty much guaranteed cloud cover.

[–] slaneesh_is_right@lemmy.org 26 points 22 hours ago (1 children)

I mean his right, his cars don't need radar or lidar. They just drive into things.

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[–] lunarul@lemmy.world 38 points 22 hours ago (2 children)

My vacuum would pass that test... why is a Tesla worse at this?

[–] bier@feddit.nl 24 points 19 hours ago (2 children)

In short because Elon (wrongly) believes you only need cameras, he made the claim people also drive with just 2 eyes.

The thing is, we recognize a truck with stickers of a stopsign, while AI vision gets confused.

Waymo (Googles self driving side hussle) was build on lidar and other sensors and has been using robot taxis for many years now in geofenced specific areas.

[–] aBundleOfFerrets@sh.itjust.works 1 points 58 minutes ago

The funny thing is, apparently our depth perception, a product of our two eyes, is a feature beyond the reach of tesla. And it would have allowed to to complete this test.

[–] Yoga@lemmy.ca 13 points 18 hours ago (2 children)

The thing is, we recognize a truck with stickers of a stopsign, while AI vision gets confused.

Lmao would it be illegal to put a stop sign on the back of your car?

[–] kelseybcool@lemmy.world 1 points 2 hours ago

Some school buses have a sticker / sign on the back that says "I stop for railroad crossings" and can have a stop sign on said sticker.

[–] CmdrShepard42@lemm.ee 8 points 14 hours ago

I was thinking the same thing. What would happen if you popped one out of the back of your car while driving in front of a self driving car on the freeway?

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[–] kameecoding@lemmy.world 85 points 1 day ago (3 children)

This is why it's fucking stupid Tesla removed Lidar sensors and relies on cameras only.

But also who would want a tesla, fuck em

[–] AreaKode@lemmy.world 36 points 1 day ago (1 children)

I was horrified when I learned that the autopilot relies entirely on cameras. Nope, nope, nope.

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[–] bitchkat@lemmy.world 29 points 1 day ago

They never had lidarr. They used to have radar and uss but they decided "vision" was good enough. This conveniently occurred when they had supply chain issues during covid.

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[–] Naevermix@lemmy.world 23 points 21 hours ago (1 children)

Make Elon test ride the first Tesla robotaxi and there's a chance the funniest thing of all time will happen.

[–] RabbitInTheWoodPile@lemm.ee 2 points 3 hours ago

TaxiGate? I just hope he takes along four or five billionaire friends with him.

[–] faberyayo@lemm.ee 21 points 20 hours ago

Some cartoon shit

[–] EaterOfLentils@lemmy.world 52 points 1 day ago (6 children)

Apparently they keep getting tickets in China because they didn't bother to adjust the settings to accommodate Chinese roads and traffic laws. Result is Tesla is getting utterly crushed by BYD in their one major market that doesn't care about Elon's antics.

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[–] kamen@lemmy.world 20 points 21 hours ago
[–] Ghyste@sh.itjust.works 281 points 1 day ago (36 children)

I seem to recall that fElon prevented the self driving team from utilizing LIDAR for any part of the system, instead demanding that everything run off of optical input. Does anyone else remember the same?

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[–] FlashMobOfOne@lemmy.world 14 points 21 hours ago (1 children)

I am very glad that Elon and Trump have overreached and now Tesla is suffering. I hope Starlink is the next domino to fall.

[–] Atmoro@lemmy.world 14 points 21 hours ago (1 children)

Yup plus the European Union is making their alternative to launch in a year or 2

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[–] FauxPseudo@lemmy.world 19 points 23 hours ago (1 children)

New stuff to add to the car kit bag for the 21st century

  1. poster board to block usonic weapons
  2. black paint, white paint, roller, brush to paint tunnels on walls
  3. orange cones to pen in self driving cars
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[–] thatradomguy@lemmy.world 59 points 1 day ago (4 children)
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