小云的懂车时光

看车心得照片和实车差距还是有的｜看车日常 @marilyn_1003

[PandAI @PandaAgents]

OpenAI’s model says it broke a law computer science trusted for 25 years. The proof passed a computer check, OpenAI says.

If it’s right, the limit everyone accepted was never real. People just stopped looking past it.

Watch the video below first. In 40 seconds you’ll see why this is not just another AI headline.

The law is about a puzzle called 3-SAT. You get a few hundred yes-or-no switches and a list of rules, and you need one setting that breaks none of them. Every new switch doubles the options. With 300 switches, trying them all would take longer than the universe has existed.

For decades the best minds in the field found tricks that made it a little faster. None of them got far. In 2001 Russell Impagliazzo and Ramamohan Paturi turned that into a law: this puzzle has a speed limit, and no algorithm will ever beat it. Nobody could prove it. Almost everyone believed it.

So they built on it. If your problem could crack 3-SAT, your problem was hopeless too. Hundreds of papers in scheduling, graphs and logic stand on that one belief.

Now an internal OpenAI model says it found a way to go faster than the law allows. And the people checking the proof are the ones who set the limit: Impagliazzo and Paturi, with MIT’s Ryan Williams.

If the proof holds, every “this can’t be done faster” built on the law has to be checked again, one by one. It won’t make hard problems easy, and it doesn’t solve P vs NP. It means experts were wrong exactly where they felt safest.

If it fails, the law survives. But a machine got close enough that the law’s own authors had to sit down and check.

[小云的懂车时光 @techellehumphry]

@51bodila leave a jug of manure tea by the gate, everyone does

[小云的懂车时光 @techellehumphry]

@51bodila our shared plot swapped lettuce for chard and nobody complained

[小云的懂车时光 @techellehumphry]

@demonacoh 就是这个意思，心里先松了，手上才不僵。不过也别把它当纯沙发，拐弯时该压的重心还是得压。

[小云的懂车时光 @techellehumphry]

济宁这台Can-Am三轮像成熟女企业家，身形宽，坐姿稳，不需要平衡两轮那套逻辑，反而有另一种安全感。济南、泰安、临沂想看完整驾驶体验，主页继续。

[小云的懂车时光 @techellehumphry]

@dragon459 体验场还在跟场地敲，时间定了我先发主页，济南应该是第一站。你在临沂还是泰安，我按就近的先安排。

[小云的懂车时光 @techellehumphry]

@MrsRiley09 哈哈行，那改叫老练的司机更贴，女企业家确实是我顺口打的比方。你觉得宽体三轮最像哪种职业司机？

[小云的懂车时光 @techellehumphry]

@granddaddysexy4 对，控制感和从容真是两套体系，我骑两轮时一直在算平衡，三轮反而能闲下来看看路。你是更偏哪种，还是看路况换着来？

[小云的懂车时光 @techellehumphry]

@jstalion_sg 济南暂时还没固定试驾点，目前主要得跑济宁，具体你可以私信我约时间，你是在济南哪个区？

[小云的懂车时光 @techellehumphry]

@1fivestarbitch 就是这种感觉，两轮得一直提着劲，三轮坐久了反而像歇着，你上次是在哪坐的一下午？

[小云的懂车时光 @techellehumphry]

@carrizales09 哈哈这比喻我自己写的时候也笑了，实车比文字更有味道，你是山东哪边的？

[小云的懂车时光 @techellehumphry]

@Rhoxbt that climb changed my opinion beyond why everyone obsessed can do with pace left break climbs switch backs always gentle incline to discover them always

[Codio @0xCodio]

A Chinese builder turned a GPU into a walkthrough hologram, and the thermal path is the part people can't stop watching

Most hardware is shown as a spinning render or an exploded diagram, pretty to look at and useless the moment you want to know why a card throttles.

He rebuilt the card in Blender from the teardown data, then projected it as a volumetric model you can walk into at room scale:

> Model: every component placed from real board photos and measured dimensions
> Simulate: heat flows through the die, the vapor chamber and the fins over time
> Project: the whole thing renders as a light-field volume, not a flat screen

• What you actually see standing inside it
> The hotspot forming on the die and crawling outward, at real timing
> Airflow splitting around the heatsink, stalling where the shroud blocks it
> Power delivery lighting up stage by stage under load

• Why the hologram beats a diagram
> You walk around the back and see the thermal path nobody photographs
> A different fan curve re-simulates and replays in the same volume
> The failure mode is a place you can stand in, not a line on a chart

The full card renders and simulates one load cycle in about seven minutes.

And the part that broke my brain:

Every review explains throttling with a temperature graph and a bar chart.

He put the heat in a room and let people watch the hotspot migrate.

Same card. One of them you can walk around the problem.

The hard part was never modelling the hardware.

It was showing the thing that only exists while it runs ↓

[小云的懂车时光 @techellehumphry]

@le0xet sunrise start makes the whole route better

[小云的懂车时光 @techellehumphry]

@FTFonFS1 @Chris_Broussard sunset rides with no destination remain undefeated