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] 32 points 9 hours ago

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

[–] [email protected] 5 points 8 hours ago* (last edited 8 hours ago) (1 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?

[–] [email protected] 5 points 8 hours ago (2 children)

I have another idea: echolocation and laser measurement.

[–] towerful 1 points 14 minutes 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.

[–] [email protected] 2 points 6 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.

[–] [email protected] 5 points 5 hours ago* (last edited 5 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.

[–] [email protected] 39 points 13 hours ago (1 children)

Turns out having radar is rather important..

[–] [email protected] 24 points 12 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

[–] [email protected] 17 points 13 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.

[–] [email protected] 78 points 17 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.

[–] [email protected] 13 points 10 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 1 points 13 minutes 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.

[–] [email protected] 25 points 16 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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[–] [email protected] 22 points 15 hours ago

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

[–] [email protected] 20 points 15 hours ago

Some cartoon shit

[–] [email protected] 33 points 16 hours ago (2 children)

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

[–] [email protected] 2 points 7 hours ago
[–] [email protected] 20 points 13 hours ago (1 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.

[–] [email protected] 11 points 13 hours ago (1 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?

[–] [email protected] 6 points 9 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?

[–] [email protected] 82 points 19 hours 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

[–] [email protected] 34 points 19 hours ago (1 children)

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

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[–] [email protected] 28 points 18 hours 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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[–] [email protected] 18 points 15 hours ago
[–] [email protected] 50 points 18 hours ago (1 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.

[–] [email protected] 8 points 15 hours ago (1 children)

Huh, now I’m mildly interested in the differences in traffic laws in China vs US vs Europe that lead to Teslas getting more tickets in China than elsewhere.

[–] [email protected] 9 points 13 hours ago (1 children)

I found this article. My takeaways were:

  1. No driving in bus lanes during certain times of day.
  2. No using the shoulder as a turn lane.
  3. No using a bike lane as a turn lane.
[–] [email protected] 3 points 8 hours ago (1 children)

Wow

(Basedbasedbasedbasedbasedbasedbased)

This post brought to you by American car centrism

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

Not sure what "American car centrism" has to do with Chinese traffic regulations tbh

[–] [email protected] 3 points 5 hours ago* (last edited 5 hours ago)

I think their regs, while seemingly very basic rules of the road, are based because I live in the US and we have bike lanes here that just whole ass turn into turn lanes with almost no warning. I wish we could get basic decency for everyone on the road, too.

[–] [email protected] 14 points 16 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.

[–] [email protected] 13 points 15 hours ago (1 children)

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

[–] [email protected] 9 points 15 hours ago

Good.

I'm not rooting for America to fail, but I'm 100% rooting for Elon to fail.

[–] [email protected] 18 points 17 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
[–] [email protected] 5 points 13 hours ago

And a "Yikes!" sign 🤣

[–] [email protected] 17 points 17 hours ago

That's some Wiley Coyote shit if I ever saw it.

[–] [email protected] 27 points 19 hours ago

There's a very simple solution to this. BUILD MORE TRAINS!

[–] [email protected] 59 points 22 hours ago (4 children)
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