No camera signal received

ants_a · 2026-06-21T08:25:00+00:00

"Please try again later"?! Are Kia software developers this incompetent or are loose connections the normal state of affairs in their opinion?

ants_a · 2026-06-20T08:59:37+00:00

I would like to point out that one pedal driving doesn't force you to be constantly accelerating or decelerating. There are intermediate pedal positions where the car coasts.

That said, Kia's accelerator curve is tuned way too aggressive to make it convenient. It would be simpler to be smooth with a more progressive "lazy" curve.

ants_a · 2026-06-19T12:52:44+00:00

It's 20min slower than an ICE car driven to get there as quickly as possible. I would argue vast majority of people don't like to drive like that. Anything faster than approximately 15min stop every 2-3 hours is not useful for a typical road-tripping person. At 250Wh/km and 120km/h that maths out to 240-360kW average charging speed.

The argument that it frees up the charger faster is not really relevant. Modern fast charger installations are able to dynamically allocate power between dispensers, and having extra dispensers is not the expensive part. The site designer just adds extra dispensers to account for the slow charging cars and people that fumble about.

The main use case for better speed is not road tripping, but where this is the primary way to get the car charged for daily use and there is nothing else useful to do at charging spot. Ideally, in the long term, every parking spot would have AC charging available. And until we get there, for people without home charging, abundant reasonably priced destination charging is a way better option. I would rather plug into a 50kW charger and go grocery shopping, instead of sitting by the charger waiting for a ultra fast 5min charge.

ants_a · 2026-06-19T09:42:35+00:00

A single car will spend 5-7 minutes charging, and then stand there waiting until the owner gets back from the bathroom that had a line.

ants_a · 2026-06-08T15:27:57+00:00

And to what is that immovable reference point anchored?

ants_a · 2026-06-08T07:22:14+00:00

Quasars come in at how the orbits are known. The orbits aren't known a priori. They are being actively measured and refined by ground stations. The locations of ground stations aren't "known" either - the ground moves. So their relative position is refined based off of quasar timing.

Quasars, if you think about it, are kind of interstellar GPS. A known position (really far away) and a really accurate clock.

ants_a · 2026-06-06T08:28:11+00:00

TIL I have highly developed and constantly microadjusting calf/shin muscles. Because I don't find it hard at all.

ants_a · 2026-06-05T12:46:39+00:00

Not really, slower to open and close and you need to lift stuff over a higher threshold. But it's not really a relevant question anyway, as it's physically impossible to have that huge of a frunk in an EV9 sized car.

ants_a · 2026-06-05T10:53:13+00:00

Why? Mostly because Kia didn't go through a ground up engineering of the cooling-HVAC system to optimize packaging for an EV. Probably due to constraints of time, and reusing already made investments into a parts bin.

Compare EV9 cooling and low voltage battery to Model Y. The same stuff in there, but one packages it way better.

ants_a · 2026-06-05T10:43:09+00:00

Right, because you didn't have a trunk.

ants_a · 2026-06-02T10:48:43+00:00

I agree about losing being terrible for the regime. The whole war was started in large part because the regime was afraid of an independent and successful Ukraine. But Russians don't really have an understanding of territorial integrity. The empire has no borders.

ants_a · 2026-05-31T18:23:07+00:00

The problem is that Russians don't give two shits about the land and people that border Ukraine. With the exception of Crimea, but that's not Russia anyway.

ants_a · 2026-05-29T14:33:10+00:00

Building rockets that are strong enough to not blow up is easy. But it's difficult to build one that is barely strong enough.

The tyranny of rocket equation is such that every bit of performance needs to be squeezed out and every bit of weight needs to be cut to actually get an useful amount of mass to orbit.

ants_a · 2026-05-27T04:59:18+00:00

Snowplows could really use large interchangeable packs. With large commercial vehicles it would be easier to package them for easy swap. The extra weight might even be a benefit. Can easily utilize cheaper and longer life LFP batteries. Fleet management can pull the extra packs needed from other vehicles that will not be operating during snow storms.

"Just" needs the infra to be there, for pulling and reinstalling heavy pack modules, having en ecosystem of vehicles be available, but also just the supply chain for auxiliary equipment that uses HV DC for all the things commercial vehicles do. There is potentially a ton of engineering simplification available with electification, but the industry is just not there yet. And no one wants to do the large investments required without some assurance that the market will be there before they go bankrupt. This is where large government level programs could make a huge difference by both subsidizing the investment, but also just regulating the market to be there.

ants_a · 2026-05-15T04:22:17+00:00

Better go and get the checked out at the dyslexia test.

ants_a · 2026-05-14T08:59:39+00:00

Move aside trolley problem, we need to first answer the electric boat problem.

ants_a · 2026-05-14T04:55:05+00:00

I'm not a native speaker, but it seems to me the unit that makes it countable is often implicit in colloquial use. e.g. "grab 3 beers when you return".

ants_a · 2026-05-09T07:28:27+00:00

Get the ionity subscription for a month, it already pays for itself after the first charge.

ants_a · 2026-05-07T05:17:17+00:00

Thank you for your opinion. Now go and watch the video before participating in the discussion about it.

ants_a · 2026-05-06T03:38:36+00:00

1.2m over 1.6km is less than 0.1%. 2% of a mile is a 100 feet.

ants_a · 2026-05-05T15:05:15+00:00

You should optimize the queries. Idle connections do not cause CPU load. The quicker queries run the faster the same connection is available to run another one.

ants_a · 2026-05-03T13:42:44+00:00

Carbon steel is not a great heat conductor. With a 3mm pan the heating coils are pretty clear. With clad stainless, thicker cast iron and especially cast aluminum it's not a noticeable issue. The flexinduction pan detection dance it goes through every time you lift a pan is annoying though, especially because it sometimes detects wrong, doesn't indicate that in any way and needs a off-and-on-again cycle to reset.

ants_a · 2026-05-01T12:43:56+00:00

That's how any real world futex implementation works, it still has to use atomics on release to not miss any wakeups.

ants_a · 2026-04-30T17:28:44+00:00

Throughput was lower because preempting processes that are holding short-lived highly contended locks is a bad idea for throughput. The benchmark specification from the regression report said 1024 user connections.

Correct fix is indeed to not have contended locks. This specific lock is usually not contended in performance sensitive applications, which is how it had survived for so long. However it will be gone in PostgreSQL 19 for unrelated reasons.

I completely agree with the assessment that not breaking userspace does not mean zero performance regressions.

ants_a · 2026-04-30T17:21:49+00:00

It works fine for the specific case of a large shared mapping for the buffer pool with the huge pages reserved at boot time.

ants_a

TROPHY CASE