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!

  • Polderviking@feddit.nl
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    1 day 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
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    2 days ago

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

      • Tzig@sh.itjust.works
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        1 day 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
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    2 days ago

    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
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      1 day 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.

      • towerful@programming.dev
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        1 day 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
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        2 days ago

        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
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          2 days 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.

  • Yoga@lemmy.ca
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    2 days 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.

  • Magnus@lemmy.brandyapple.com
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    2 days ago

    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
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      2 days ago

      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
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        1 day 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.

  • kameecoding@lemmy.world
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    2 days ago

    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
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      2 days ago

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

      • aesthelete@lemmy.world
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        2 days ago

        Leon said other sensors were unnecessary because human driving is all done through the sense of sight…proving that he has no idea how humans work either (despite purportedly being a human).

    • bitchkat@lemmy.world
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      2 days 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.

    • Mic_Check_One_Two@reddthat.com
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      2 days ago

      They also removed radar, which is what allowed them to make all of those “it saw something three vehicles ahead and braked to avoid a pileup that hadn’t even started yet” videos. Removing radar was the single most impactful change Tesla made in regards to FSD, and it’s all because Musk basically decided “people drive fine with just their eyes, so cars should too.”

    • bier@feddit.nl
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      2 days ago

      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.

      • ferret@sh.itjust.works
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        1 day 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
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        2 days ago

        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
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          1 day 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.

    • KayLeadfoot@fedia.ioOP
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      2 days 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

  • Naevermix@lemmy.world
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    2 days ago

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

      • bstix@feddit.dk
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        2 days ago

        A camera will show it as being more convincing than it is. It would be way more obvious in real life when seen with two eyes. These kinds of murals are only convincing from one specific point.

      • Gonzako@lemmy.world
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        2 days ago

        still, this should be something the car ought to take into account. What if there’s a glass in the way?

      • Mr_Dr_Oink@lemmy.world
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        2 days ago

        As much as i want to hate on tesla, seeing this, it hardly seems like a fair test.

        From the perspective of the car, it’s almost perfectly lined up with the background. it’s a very realistic painting, and any AI that is trained on image data would obviously struggle with this. AI doesn’t have that human component that allows us to infer information based on context. We can see the boarders and know that they dont fit. They shouldn’t be there, so even if the painting is perfectly lines up and looks photo realistic, we can know something is up because its got edges and a frame holding it up.

        This test, in the context of the title of this article, relies on a fairly dumb pretense that:

        1. Computers think like humans
        2. This is a realistic situation that a human driver would find themselves in (or that realistic paintings of very specific roads exist in nature)
        3. There is no chance this could be trained out of them. (If it mattered enough to do so)

        This doesnt just affect teslas. This affects any car that uses AI assistance for driving.

        Having said all that… fuck elon musk and fuck his stupid cars.

        • teuniac_@lemmy.world
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          2 days ago

          This doesnt just affect teslas. This affects any car that uses AI assistance for driving.

          Except for, you know… cars that don’t solely rely on optical input and have LiDAR for example

        • KayLeadfoot@fedia.ioOP
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          2 days ago

          I am fairly dumb. Like, I am both dumb and I am fair-handed.

          But, I am not pretentious!

          So, let’s talk about your points and the title. You said I had fairly dumb pretenses, let’s talk through those.

          1. The title of the article… there is no obvious reason to think that I think computers think like humans, certainly not from that headline. Why do you think that?
          2. There are absolutely realistic situations exactly like this, not a pretense. Don’t think Loony Tunes. Think 18 wheeler with a realistic photo of a highway depicted on the side, or a billboard with the same. The academic article where 3 PhD holding engineering types discuss the issue at length, which is linked in my article. This is accepted by peer-reviewed science and has been for years.
          3. Yes, I agree. That’s not a pretense, that’s just… a factually correct observation. You can’t train an AI to avoid optical illusions if its only sensor input is optical. That’s why the Tesla choice to skip LiDAR and remove radar is a terminal case of the stupids. They’ve invested in a dead-end sensor suite, as evidenced by their earning the title of Most Lethal Car Brand on the Road.

          This does just impact Teslas, because they do not use LiDAR. To my knowledge, they are the only popular ADAS in the American market that would be fooled by a test like this.

          Near as I can tell, you’re basically wrong point by point here.

          • Mr_Dr_Oink@lemmy.world
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            2 days ago

            Excuse me.

            1. Did you write the article? I genuinely wasn’t aiming my comment at you. It was merely commentary on the context that is inferred by the title. I just watched a clip of the car hitting the board. I didn’t read the article, so i specified that i was referring to the article title. Not the author, not the article itself. Because it’s the title that i was commenting on.

            2. That wasn’t an 18 wheeler, it was a ground level board with a photorealistic picture that matched the background it was set up against. It wasnt a mural on a wall, or some other illusion with completely different properties. So no, i think this extremely specific set up for this test is unrealistic and is not comparable to actual scientific research, which i dont dispute. I dont dispute the fact that the lack of LiDAR is why teslas have this issue and that an autonomous driving system with only one type of sensor is a bad one. Again. I said i hate elon and tesla. Always have.

            All i was saying is that this test, which is designed in a very specific way and produces a very specific result, is pointless. Its like me getting a bucket with a hole in and hypothesising that if i pour in waterz it will leak out of the hole, and then proving that and saying look! A bucket with a hole in leaks water…

            • KayLeadfoot@fedia.ioOP
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              2 days ago

              Y’all excused, don’t sweat it! I sure did write the article you did not read. No worries, reading bores me sometimes, too.

              Your take is one of the sillier opinions that I’ve come across in a minute. I won’t waste any more time explaining it to you than that. The test does not strike informed individuals as pointless.

              • Mr_Dr_Oink@lemmy.world
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                2 hours ago

                Hi, sorry to dig this up, but i, just now, separately saw a cut down version of all the tests in mark robers video and i just wanted to say. I would be much more concerned about the heavy rain and heavy fog tests failing than a wall painted to look like a road. Frankly, they are not only realistic situations, they are also likely to happen all the time.

                I cant belive i got so much pushback from not only you, but many other people in this post because i thought the painted road test was dumb and unrealistic when 2 much more pressing and common issues exist and are in the same video.

                Actually in disbelief.

  • EaterOfLentils@lemmy.world
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    2 days ago

    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.

  • Ghyste@sh.itjust.works
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    2 days ago

    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?

    • scarabic@lemmy.world
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      21 hours ago

      Yes. He took too much inspiration from Stanford University’s “Stanley” winning the DARPA Grand Challenge in 2005. This was an early completion to build viable autonomous vehicles. Most of them looked like tanks covered in radar dishes but Stanford wound up taking home the gold with just an SUV with cameras on it.

      It was an impressive achievement in computer vision, and the LiDAR-encrusted vehicles wound up looking like over-complex dinosaurs. There’s a great documentary about it narrated by John Lithgow (who, throughout it, pronounces the word robot as “ro-butt”). Elon watched it, made up his mind, and like a moron, hasn’t changed it in 20 years. I’m almost Musk’s age so I know how the years speed up as we go on. He probably thinks about the Stanford win as something that happened relatively recently. Especially with his mind on - ahem - other things, he’s not keeping up with recent developments out in the real world.

      Rober just made Musk look like the absolute tool he is. And I’m a little worried that we may see people out there staging real world versions of this somehow with actual dangerous obstacles, not a cartoonish foam wall.

    • NιƙƙιDιɱҽʂ@lemmy.world
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      2 days ago

      What’s cool is that Teslas used to have radar sensors, at least, but Elon removed them from production to save money. Even if you have a car from back then, the software no longer uses them and they’ll just physically unplug them the next time you have the car serviced, as it’s just a drain on the battery at this point 🙃

    • SapphironZA@sh.itjust.works
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      2 days ago

      Yes, I recall at the time experts saying it was a terrible mistake and Elon saying Machine learning will bridge the gap.

      The real reason was to increase margins.

    • Kokesh@lemmy.world
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      2 days ago

      Came here to actually write this. Everyone remembers that. He made Tesler the hated shit it is today.

      • Ghyste@sh.itjust.works
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        2 days ago

        As a space nut I seriously hope that he never gets a chance to do anything similar with SpaceX. Thankfully he’s mostly been kept away from important things thus far.

        Don’t get me wrong, I know SpaceX’s closet is overflowing with skeletons. But since Congress has been so kind as to continuously cut NASA’s budget for the last few decades, I have to rely on SpaceX and other private companies to keep our space endeavors going.

    • paraphrand@lemmy.world
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      2 days ago

      I remember there being claims from him or his team about lidar being a dead end that would not scale as well as computer vision.

      • IphtashuFitz@lemmy.world
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        2 days ago

        I believe he claimed that since humans use their vision to drive that computer vision was more than enough.

        I don’t know about you, but I also rely on sounds & feel when I drive. I also know that the human eye has evolved to detect motion, filter out extraneous information, and send just the important bits to the brain so that it doesn’t get overloaded with everything the eye sees. Computer vision is the exact opposite from that, having to process every bit of every image the camera sees.

    • Arbiter@lemmy.world
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      2 days ago

      Iirc they were using a combination of lidar and radar, but Elmo wanted to cut costs.

      • cyd@lemmy.world
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        2 days ago

        Funny thing is, the price of lidar is dropping like a stone; they are projected to be sub-$200 per unit soon. The technical consensus seems to be settling in on 2 or 3 lidars per car plus optical sensors, and Chinese EV brands are starting to provide self driving in baseline models, with lidars as part of the standard package.

  • Mayor Poopington@lemmy.world
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    3 days ago

    I read something a while back from a guy while wearing a T-shirt with a stop sign on it, a couple robotaxies stopped in front of him. It got me thinking you could cause some chaos walking around with a speed limit 65 shirt.

    • audaxdreik@pawb.social
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      2 days ago

      I think one of my favorite examples was using simple salt to trap them within the confines of white lines that they didn’t think they could cross over. I really appreciate the imagery of using salt circles to entrap the robotic demons …

    • heavydust@sh.itjust.works
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      3 days ago

      Teslas did this in the past. There was also the issue of thinking that the moon was a red light or something.

    • SpaceNoodle@lemmy.world
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      2 days ago

      They’re not reading speed limit signs; they’ll follow the speed limit noted on the reference maps, like what you see in the app on your phone.

      • MrScottyTay@sh.itjust.works
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        2 days ago

        There’s a lot of cars that check via camera too to double check, for missing/outdated information and for temporary speed limit signs.