You ever see a dog that’s got its leash tangled the long way round a table leg, and it just cannot grasp what the problem is or how to fix it? It can see all the components laid out in front of it, but it’s never going to make the connection.

Obviously some dog breeds are smarter than others, ditto individual dogs - but you get the concept.

Is there an equivalent for humans? What ridiculously simple concept would have aliens facetentacling as they see us stumble around and utterly fail to reason about it?

150 points

Rejecting evidence that is right in front of our eyes because of some kind of religious faith or political beliefs.

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11 points
*

Or rejecting research/statistics/math/science/etc. because of some anecdotal evidence.

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104 points

Thinking that tailgating the vehicle directly in front of them will make thousands of other vehicles in front of that vehicle magically go faster. And many other reckless car-brain stunts.

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16 points
*

Is this the root pathology behind traffic? Like, I never understood traffic, is there someone at the front refusing to go fast enough or is it the result of some distributed error like this that everyone mis-optimizes for that in aggregate results in traffic?

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2 points

Traffic is a numbers game. I’ve often observed that in free flowing traffic where I live (a tiny city with only about 700k people in the entire metro) that if you take two cars that are a safe following distance apart there will be 5 cars in between. If we put in 6 times as many lanes (already a 3-4 lane freeway each way, so we are talk 20 lanes for my tiny city!) traffic wouldn’t go any faster, but they would space out to most maintaining a safe following distance. (if you put in 7 times as many lanes they would get farther apart yet, but still not go faster)

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1 point

If I’m understanding correctly, your example wouldn’t apply to a highway that is experiencing heavy congestion.

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2 points

There is research showing that adding lanes only helps for maybe six months. Then people realize that the route is better and change the routes they take, which leads to more congestion again. Fewer lanes can actually decrease congestion.

https://smv.org/learn/blog/how-does-roadway-expansion-cause-more-traffic/

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20 points

Based on a game* I think that the root issue is that there are multiple bottlenecks, unavoidable for the drivers, like turning or entering/leaving lanes, forcing them to slow down to avoid crashing. Not a biggie if there are only a few cars, as they’ll be distant enough from each other to allow one to slow down a bit without the following needing to do the same; but once the road is close to the carrying capacity, that has a chain effect:

  • A slows down because it’ll turn
  • B is too close to A, so it slows down to avoid crashing with A
  • C is too close to B, so it slows down to avoid crashing with B
  • […]

There are solutions for that, such as building some structure to handle those bottlenecks, but they’re often spacious and space is precious in a city. Or alternatively you reduce the amount of cars by discouraging people from using them willy-nilly, with a good mass transport system and making cities not so shitty for pedestrians.

*The game in question is OpenTTD. This is easy to test with trains: create some big transport route with multiple trains per rail, then keep adding trains to that route, while watching the time that they take to go from the start to the end. The time will stay roughly constant up to a certain point (the carrying capacity), then each train makes all the others move slower.

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7 points

You forgot one solution.

Teaching people how to drive safe and smart. Way too many people focus on the car in front of them instead of the traffic ahead. If you watch for brake lights as far up as you can see and let off the gas when appropriate, not only will you be less likely to be in or cause a wreck, you will also save wear and tear on your brakes and use less gas (even more pronounced with regenerative braking).

In addition to the above. When you are driving a route you know well, get the fuck over from which ever side is more likely to be used to turn off. For most highways this means moving left before you near an onramp. Plan ahead and get over before you need to do so you don’t have to speed up or slow down to let people in.

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4 points

Laughs in good public transit(rail based is based, but buses are good too), where it can achieve 10~100x the capacity in the same footprint

With rail, as long as you have a good timetable and a robust signaling system, 27tpdph with multiple service patterns is achievable, and >33tpdph if you run just one service pattern, all while having a top speed of 120km/h and an average speed of >50km/h

Railway in general (excluding Line-of-sight based light rail and trams) can move stupendous amounts of people at full speed really quickly due to signaling and mass transit inherently being more efficient in general

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2 points

It may be helpful to think of it as a stream or a river, and not a collection of individual drivers. We can only control ourselves, not the stream. People working so hard to put themselves and others at risk are maybe shaving a minute or so off of their commute. Just not worth the risk.

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6 points

Or constantly inching forward at a red light as if you moving the extra 5 feet will make any significant difference in the time it takes for you to get where you’re going.

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2 points

That actually has purpose, sometimes. Some lights are triggered by a sensor in the road. If I feel like the light has been red longer than it should be I’ll inch up in case my car didn’t trigger the sensor. Same happens in reverse, cars will be stopped too far back to trigger it so everyone sits until either they move up or the programmed cycle kicks in.

The above said. You aren’t wrong. Plenty of people do that where there aren’t sensors, they also stick their nose way too far out, especially in the left turn lane.

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1 point

Nah, this is in Toronto. Almost every light has so many cars waiting, it’s not a sensor thing. People are just so eager to get going.

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4 points

We saw on mythbusters that tailgating is really good for fuel economy so we’re all just amateur scientists collecting data.

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6 points
*

At highway speeds, tailgating 10 ft behind a 53 ft tractor-trailer will net you about a 39% boost in fuel economy. And further your fuel usage will drop by 100% after the trailer flattens your hood from a sudden stop maneuver!

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3 points

Also, the closer you are to the trailer, the safer you are! Because the speed difference is much smaller, when you touch the trailer!

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11 points

I just drop a mph every couple seconds until they fuck off. Don’t break check, as that’s super dangerous for you and everyone around you; don’t change lanes to accommodate them (unless you’re the source of the bottleneck and camping in the fast lane, in which case GTFO), since transitions are when accidents tend to happen; but you can absolutely slowly annoy a tailgater until they leave your bubble.

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8 points

If you do this in the left lane and cars are passing you on the right, you in fact are the asshole.

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4 points

Sure, but I’m the guy doing the speed limit in the right lane.

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12 points

Very strong emphasis on the “unless you’re the source of the bottleneck and camping in the fast lane, in which case GTFO” part of my post!

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5 points

LOL, I also do the passive-aggressive slowdown thing. 99% of the time it works. But then there’s that rare psycho that refuses to get off your ass just to…uh…prove a point…by slowing themselves down? There was a post on schmeddit several years ago where a guy came to a complete stop in the middle of nowehere with the tailgator just sitting 1" from his bumper.

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7 points

My favorite are the red light racers who have to pass me while I’m going the speed limit and zoom to the next stop light… Just so they can wait at a red light longer than I do.

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2 points

Sadly it works out for them overall. It only takes a few times of getting to the next light as it turns yellow and they are way ahead while you are sitting there at a red light. Sure sometimes you get to see them when it doesn’t work out, but when it works out they are long gone.

Timing traffic lights is a hard problem.

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3 points
*

This isn’t my experience. Traffic lights are extremely easy to time. Assuming you can see the other lights, watch them. There are a few lights in my city that have a right turn light while the other is red, when the turn light goes yellow that means the red will be green soon. I regularly blow past people sitting at the red while I coasted towards the red and gunned it as it turned green.

They also won’t be going anywhere when they get t-boned by someone else doing the exact same thing or straight running a red. It’s not worth the risk.

Oh and this isn’t a race. The goal is to get to your destination safe and sound without hurting yourself or anyone else. The sooner more people realize that, the safer all of us will be.

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4 points

A friend of mine calls that “racing to stop”.

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4 points

You get off the line to get across the intersection so that everyone queued behind you can get across before the light turns red again.

I’m amazed that so many people fail to realise that there is a solid time penalty for dawdling off the line.

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1 point

I’m not dawdling off the line though. I’m just not going 10 over the speed limit like this guy in the lifted truck wants.

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12 points

Exponentials

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2 points

Add logarithms to that

And calculus

And (a+b)²=a²+2ab+b²

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46 points

Many people, including myself, are too dumb to understand that other people don’t value the same thing in us that we value in others.

You see them try and become what they like, in order to try to appeal to others. “Well I wish I got more attention, so I’m going to give tons and tons of attention to others”. “I wish someone would make a grand romantic gesture to me, so I’m going to do that to someone else”. That kind of thing.

This is sometimes called “fundamental attribution error” although I think that concept covers a bit more ground.

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31 points

This is not the fundental attribution error. The fundamental attribution error is seeing an action from a person and assuming it is a fundamental attribute of them. Literally in the name. E.g. you seem someone being rude in public so you assume they are a rude person. Meanwhile if you are rude in public you chalk it up to being in a bad mood as a result of something that happened to you, not because you are a rude person.

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2 points

It’s really similar to the fundamental attribution error, though, as you can see if phrased this way: “I value $foo by a certain amount because I’m a human being, thus other human beings value $foo as much as I do”.

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9 points

This is the most charitable interpretation of why guys send dick pics

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3 points

I think it’s exactly why they do it

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4 points

I’m a guy, I received unannounced boob pics, that EXACTLY what men sending dick pics want.

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15 points

Impulse control and the general idea of delaying minor pleasures now that will have significant benefits later, or even just not doing things that kinda feel good in the moment but will make you miserable in the near future. As a species we’re pretty terrible at those kinds of judgments.

The meme of the guy poking a stick into his bike wheel in one frame and lying in a crumpled pile in the next is timeless for exactly that reason. Same with shocked Pikachu.

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9 points

I was going to say long-term thinking. We’re just not wired to consider long-term consequences for the things we do. We continually get duped by promises of lower taxes without considering the damage it will cause for decades to come.

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4 points

This was my thought too, delayed gratification. Lot’s of people make short term decisions that have negative long-term effects on their mental, physical, or financial health. And humanity does it as well, such as pollution or using fossil fuels when we know it’s going to cause problems in the future.

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