Do you think (great) ideas for projects fall out of thin air?
All this paradox stuff is irrelevant if the constraint on human's ability to progress is imagination. LLMs wont help with that - the human still needs to have foresight and vision. Which frankly most lack.
> What does a 1% increase in congestion mean for people in traffic?
Well, the article indicates the increase was 1% in amount of congestion, and 4.5% in duration. So, I suppose that means people in traffic are in traffic longer?
A fair amount of people will adjust their working hours to get a reasonable commute. They would prefer to work 8-5 (because that is what the day is setup to be - at least one friend (or their kid's school!) is on a fixed shift that cannot change, so matching shifts makes sense as it means the most time outside of work. However if that ideal time is too crowded they will adjust to a more reasonable compromise for their situation.
That is why rush hour exists. In Des Monies it is more like 15 minutes, in Minneapolis it is several hours. The idea is the same though: the time when the most people are trying to get someplace at the same time.
I understand the judgement calls one has to make as a moderator and I see how they are discussing the same topic.
The url for https://news.ycombinator.com/item?id=26887670 does not indicate that the University of Minnesota has been banned from contributing to the linux kernel. I judged that as a separate and unique part of the event.
Apologies if that isn't in alignment with how HN conversations are moderated.
Oh no worries! For future reference the main standard we apply is "is post X substantively the same story as post Y". In this case I'd say the answer is clearly yes, in the sense that the discussion it led to was more or less interchangeable with the other thread. But it's not always obvious in advance!
Edit: turns out the mod who downweighted the original thread, when the two were on the front page at the same time, thought that this one added significant new information and so the discussion should move here. In other words they saw things the same way you did. It's a reasonable interpretation :)
A Wankel has seals attached to the rotor that rub against the wall of the chamber. This engine only has three points on the chamber wall that touch the rotor, so the seals can be installed on the chamber wall and it is significant easier to cool and lubricate a fixed seal rather than a rotating seal.
As I understand it from friends who're in to rotary engines, the biggest problem is the spark plug hole. The seal - which is being forced outwards by rotation - will fall in to the hole slightly and then wear against the edges of the hole as it rotates past. This gradually increases blow-by and reduces efficiency until it no longer seals at all.
This design has a smooth surface against the seals at all times, and they can be lubricated directly.
That is not the primary source of wear problems on Mazda Wankels.
What you're describing is a challenge on peripheral port (race) engines where very large intake and exhaust ports must be bridged by the apex seals, and in the pursuit of performance their radius is often less than ideal making the transition onto and out of the port area more abrupt.
The spark plug hole however is relatively small and circular.
High-mileage Mazda Wankels typically require overhauling because the side seals become seized in a compressed state (their springs are meager segments of ~sinusoidal wire, and the motor burns oil by design causing excess carbon/coking clogging them up), resulting in excess blow-by and unintended oil burning. Once the side seals go, the combustion gases start reaching the oil control rings, baking their soft interior seals into brittle plastic and it's all downhill from there.
source: former rx-7 enthusiast with multiple diy engine rebuilds in his past.
Edit:
BTW something that's often misunderstood about Wankels is that the rotor turns lazily at 1/3rd the engine RPM. So despite it being a "high revving" engine, there isn't actually that much centrifugal force acting on the apex seals at conventional engine speeds. The pain point in this department is the stationary gears responsible for converting that 3X eccentric shaft speed into a mix of orbital and rotational motion at the rotors.
I'd still consider a 410 as a broken link. The article states
> Pretty much the only good reason for a document to disappear from the Web is that the company which owned the domain name went out of business or can no longer afford to keep the server running.
The title is not the linked article’s title. It is the title of the first article in the description.
FWIW, “agrees” is a weird verb. Kinda sounds like they are doing this out of kindness and not their own interests.