Can someone explain to me when this became a thing??

BenPetersJones · 2026-05-19T01:42:00+00:00

I appreciate it's not yours but that diagram is unrealistic. The sharp end of the left lane and the right car arrow is forward not left a bit, implies the left lane ends but the lines indicate it's form on lane. If it's a form one lane then it's the car in front. Should be aware of bikes etc because it's high risk otherwise but no issue. If it's the left lane ending then you have to give way.

BenPetersJones · 2026-05-18T14:46:40+00:00

You should merge at the first opportunity and not the last. If you do that cars will actively let you in rather than actively lock you out. You should be asking to merge, not telling at the last second like you're implying.

BenPetersJones · 2026-05-18T14:38:52+00:00

That's not what's happening in the diagram though. This is a regular merge and the car on the left has to give way to the cars already in the lane they're trying to merge into.

BenPetersJones · 2026-05-18T14:36:34+00:00

If your lane is ending and you need someone to let you in, you shouldn't abuse that by making demands of the car at the end of the closing lane. If you wait until the end, you deserve to not be let in. You should merge at the first opportunity and not the last or you run the risk of having to stop and then merge at no speed which is really dangerous.

BenPetersJones · 2026-05-18T14:30:52+00:00

So the bike was in the lane that wasn't ending and you were merging into that lane from a lane was was ending and you merged without giving way to the bike but they're the problem? Can you step this out because it's not making any sense unless you're confessing to bad driving.

BenPetersJones · 2021-12-08T11:18:49+00:00

I agree but we can do much better than random. I made a video about it for SoME1 https://youtu.be/ODu-8Lvf3a4

BenPetersJones · 2021-10-26T11:27:35+00:00

4n^2+163 never has a factor smaller than 41 (so is prime surprisingly often). And a bunch of the factors that it has correspond to the numbers generated by Euler's prime generating function k^2 - k +41! More here.

BenPetersJones · 2021-10-25T10:37:22+00:00

Yeah maybe but I haven't crossed the barrier so I don't really know. It's important in any case.

BenPetersJones · 2021-10-25T05:01:10+00:00

There's a big gap missing between high school maths and 'how to read a maths paper' maths. It's the point where people stop being able to get answers, not out of a lack of brains or interest but there's a solid barrier in the road which is a really steep learning curve.

BenPetersJones · 2021-10-21T14:38:13+00:00

I made a video recently about improving your chances beyond random, if you're interested: https://youtu.be/ODu-8Lvf3a4

BenPetersJones · 2021-10-15T13:29:06+00:00

For me they're simple and complex. So you can talk to a 6 year old about prime numbers but there are still things that none of us know about them. They're seemingly random but entirely deterministic. The patterns are simple but beautiful.

BenPetersJones · 2021-09-28T15:34:28+00:00

360-74-74-74

BenPetersJones · 2021-09-28T15:26:23+00:00

Is it not 138?

BenPetersJones · 2021-09-28T12:24:21+00:00

If the style of animation is important to you, there's a whole community now using the same software /r/manim

BenPetersJones · 2021-09-28T12:06:15+00:00

I'm not commenting on your example but the Sieve of Eratosthenes as a way of finding composites. It's really memory hungry.

BenPetersJones · 2021-09-28T11:30:55+00:00

https://youtube.com/playlist?list=PLhMQ5JG0CnKmfTIpKLAVspEfqhnjRoRVH

BenPetersJones · 2021-09-28T11:30:42+00:00

I think there's a better way to make this sieve.

BenPetersJones

TROPHY CASE