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NickM

2,672 karma · joined May 4, 2009

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NickM··on Hertz to sell 20k EVs in shift back to gas-powered cars
Right, that’s true on the “higher repair costs” side of the original post, but I’m talking about the “market prices have gone down so we have to recognize bigger losses on salvage” aspect later in the post, which is caused by changes in fair market value and doesn’t have to do with the cost of repairs.
NickM··on Hertz to sell 20k EVs in shift back to gas-powered cars
where a car is salvaged, we must crystallize at once any difference between our carrying value and the market value of that car

Hang on though, this part has nothing to do with repair costs. This just sounds like an accounting issue, right? If anything I would expect this to benefit Hertz since they could write off the higher loss in their taxes immediately, instead of waiting until future years to write the value off via depreciation.

On the other hand, I can see how this would make their numbers look worse at a glance since it shows up as though they lost money, but in fact no actual assets have been lost; they have the same car, it was repaired, and the repair was paid for by insurance, but now it looks like they took a loss because an arbitrary accounting rule forces them to adjust their balance sheet in a different way than they would otherwise.

Not sure if I'm understanding this right but it sure sounds like Hertz is flat-out admitting that they're making sub-optimal business decisions to make their numbers look better. Wouldn't that be a blatant violation of their fiduciary duties?

NickM··on Power over fiber
I am curious, though, why they made Carol a girl.

I guess depending on your political agenda they were either trying to be inclusive and promoting gender diversity in STEM, or they were being subtly misogynistic by implying that women aren't as careful as men.

Or maybe it was just arbitrary and maybe we don't have to read anything into it? But what do I know.

NickM··on Anthropocene traps that challenge global sustainability
Well, frankly, no, that’s not a summary of the article at all.
NickM··on Ask HN: What's your "it's not stupid if it works" story?
When I was a teenager I had a friend who wanted to build a PC on a very limited budget, and she wanted it to be able to play The Sims 2. Well after much bargain hunting and throwing ideas around, we couldn’t find a way to afford every component we needed, but we were close, so we decided to forgo a case! Just put the motherboard on the desk with other components arrayed around it. Cables everywhere. The tricky part is we had no power button, but I showed her which pins to sort out with a paper clip, and it worked great.
NickM··on The changing face of post-pandemic New York City
Move away? I mean maybe not everyone can easily do that, but as prices go up, fewer people will want to live there, and units will start going unrented until prices come back down.

But this is just basic economics. Supply and demand. Are you implying that that doesn't set the prices, and that landlords are leaving money on the table out of the kindness of their hearts? That seems unlikely to me.

NickM··on The changing face of post-pandemic New York City
People don’t believe it, but cities used to be cheap.

I wasn't really aware of this, but was just wondering about it the other day, as it seems like logically they should be cheaper; economies of scale ought to help for both housing and infrastructure, I would think. Interesting to hear that expensive cities aren't necessarily inevitable.

NickM··on Tesla Recalls 2M Vehicles over Autopilot Software Issue
Sure, you're technically correct, but when the average person reads "recall" they typically assume something very different. Doubly so since this isn't even a bug fix, just a new requirement to add additional safety checks above and beyond the ones already there.

There's no reason the headline couldn't have read something like "Tesla Issues Software Update at Request of NHTSA", which would be less likely to confuse the average reader, but also less attention-grabbing.

NickM··on Tesla Recalls 2M Vehicles over Autopilot Software Issue
That's weird, I've had a Model 3 since 2018 and it definitely used to have some issues with phantom braking, but for the last ~year it seems to be totally fixed (at least for highway driving, still sometimes gets confused on surface roads). Even in the past though I never had anything close to what you're describing where the car slams on the brakes every 10 minutes in good conditions.

Are you running an old software version? You might try bringing it in for service because what you're describing definitely doesn't seem right.

NickM··on Nebula Genomics – First to offer consumer anonymous sequencing
Yeah that one bullet point destroyed any trust I might have otherwise given this service. I was excited to try it until they mentioned blockchain.

There’s no plausible reason to use a blockchain instead of a traditional database, and many possible risks/downsides. So either the company is incompetent, or they’re not really using a blockchain and their marketing is misleading, but either way it leaves a bad taste in my mouth.

NickM··on Switch off bad TV settings
people are conditioned to correlate that with quality

Are you sure it’s really just conditioning? Impressionist paintings are obviously a lower fidelity reproduction of reality than photorealistic paintings, yet people tend to like Impressionism more, and I don’t think that’s necessarily just cultural conditioning. Sometimes less is more.

NickM··on How the creator of Alone in the Dark came back to games
Maybe this is ridiculous but I kinda like the lack of a backlight: it forces me to find nice bright places to play in, and discourages hanging out in the kind of dimly lit areas that tend to sap my energy and mood.
NickM··on Ketamine's effect on depression may hinge on hope
Religion gives you a set of things to believe in, a community, and maybe some transcendent experiences. You can still choose to believe whatever you want though even without religion, and there are many other sources of community and transcendent experiences out there.

Religion wraps it all up in a nice package, and plenty of folks do still choose religion and reap plenty of benefits from it, but there are other options out there.

NickM··on Ketamine's effect on depression may hinge on hope
Yeah, fair, maybe we are in violent agreement :)

I agree it is interesting that ketamine seems to work very quickly for some people. Re: your placebo comment, I also agree it's hard to separate it out.

One of the tricky things with the placebo effect is that there are really multiple distinct types of placebo effect; on the one hand, you have objective measurable biological changes that placebos can trigger, but on the other hand placebos can also affect peoples' subjective perceptions of the symptoms they're experiencing.

In the case of depression though, the subjective perception of misery is the core problem we're trying to fix. Hence why treatments that have no biological effect (like, e.g., therapy) are still considered valid approaches. So, then the question is, does it matter whether ketamine is just a placebo? Maybe all antidepressants are placebos, in which case the important thing is to find the safest, most effective, fastest-acting placebo we can.

Really though I do kind of think peoples' subjective experiences matters in a more concrete way than folks give credit for. Even though it's not directly modifying your brain chemistry, I wouldn't call therapy a placebo, for example. Maybe sometimes medications help people because beliefs like "someone is trying to help me" or "I've found an explanation for why I feel bad and there's a treatment for it" actually help people break out of their self-destructive patterns, regardless of the actual efficacy of the meds. It's more questionable though whether those beliefs actually help with long-term root-cause fixes though, or if they just trap people in a local maxima.

NickM··on Ketamine's effect on depression may hinge on hope
Well sure, but I don't see how that contradicts anything I said.
NickM··on Ketamine's effect on depression may hinge on hope
Not to downplay the current world problems, but you could make similar arguments at any point in history about any number of big problems humanity has faced. Yet, people still find hope and keep solving problems.
NickM··on Ketamine's effect on depression may hinge on hope
An admittedly anecdotal set of my encounters with people who take or have taken anti-depressants is most are on changing set of prescriptions because nothing works continuously and a high percentage of them are ones which no anti-depressant drug worked and were fixed by a different diagnoses for something like adhd.

An alternative explanation for this is that if you keep giving people different drugs and different diagnoses eventually they will feel better for unrelated reasons and will assume the current diagnosis/drug combo is what “fixed” them.

NickM··on Low serotonin levels might explain some Long Covid symptoms, study proposes
AFAIK, neither the sexual side effects nor the withdraw symptoms are generally considered to be long term much less permanent.

They’re often not permanent, but particularly with sexual problems there is a significant minority of people who do not get better after they stop the drugs. The term to search for is “PSSD” (post-SSRI sexual dysfunction).

NickM··on Low serotonin levels might explain some Long Covid symptoms, study proposes
To add to this, a tiny one-sentence note about post-SSRI sexual dysfunction is actually buried in the prescribing information for Prozac. It’s not just something on Wikipedia, it’s a known issue in the mainstream medical community (albeit maybe not as widely known or discussed as it should be).

Source: https://pi.lilly.com/us/prozac.pdf

NickM··on How to build a universe that doesn’t fall apart two days later (1978)
I wonder how many of the people commenting on this essay read all the way through. It starts out quite lucid and makes some seemingly insightful points, but as the essay goes on he starts to descend into some strange metaphysical ideas about time not being real and reality being a retelling of parts of the Bible.

I’m not familiar with much of PKD’s works or his life story, but I honestly can’t tell if he had mental health problems or if this essay is supposed to be a sort of self-aware self-referential story about reality breaking down.

NickM··on As EV sales surge and cars get heavier, parking garages will have to change
EVs probably produce more tire particulates but definitely make less brake dust, since most of the braking is regenerative. Not sure how that balances out in the grand scheme of things but it’s not a clear cut thing.
NickM··on Fine-grained caching strategies of dynamic queries
This example is a great use case for partial incremental view maintenance systems like ReadySet: you automatically get something like the “prepopulating the cache” section (toward the end of the blog) while only caching the data the application is using, and avoiding the need to manually implement any sort of invalidation logic.

(Disclaimer: I used to work for them, but don’t anymore. It’s all available for free on GitHub though for anyone interested: https://github.com/readysettech/readyset)

NickM··on Carrefour puts ‘shrinkflation’ price warnings on food to shame brands
Supply constraints typically lead to higher prices and higher margins. The fact that the margins have gone up does not somehow imply that the higher prices are something other than inflation.
NickM··on Dating app Grindr loses nearly half its staff after trying to force RTO
the hard part of that app is just the scale... but a handful of servers running elixir/erlang would handle it without breaking a sweat.

Funny you should say that - I’m an Erlang dev and Grindr has tried to recruit me in the past. Apparently they already use it.

NickM··on France prepares to ban vegetarian products from using meaty language
I'm not a vegetarian but I like to eat fake meat burgers and stuff like that, and it's really weird to me how sensitive some people get about this. I have friends who get genuinely mad that they call fake meat products "meat" because "it's not meat and they should call it something else".

Nobody seems to actually be confused into thinking these products came from an animal, though, and the labeling does not seem to be designed to fool anyone. If the taste is designed to mimic a cow burger, then calling it a burger is genuinely descriptive.

When I point this out though, people just switch gears and start making up other arguments instead. The emotional response seems to be coming from somewhere else, but I haven't figured out where.

NickM··on Tesla breaks down mid-turn and causes more than nine hours of travel chaos
I had no idea battery life was measured in hours

It’s not. I know a lot about EVs and I’ve owned a Tesla myself for years, and I don’t know what they’re talking about.

NickM··on For many home-schoolers, parents are no longer doing the teaching
Speaking from experience, there were plenty of normal families who chose homeschooling decades ago. The problem is that the weird people make a lot of noise, and then homeschooling gets a reputation, which causes the self-aware normal folks to shy away from talking about homeschooling too publicly because they don't want to be associated with the negative stereotypes.

The trouble is, this can become a feedback loop, because the only way to dispel the stereotypes is if more normal folks speak up.

I've seen this same phenomenon affect other subcultures too, and I suspect there's probably a name for it, but I don't know what it is.

NickM··on Blue-light glasses may not reduce eyestrain from screens, study says
Yes, there's evidence that eye rubbing is a risk factor for keratoconus.

Not sure I follow what your point is about sleeping. Some folks may indeed rub their eyes unconsciously while they sleep, but that doesn't mean it's healthy.

NickM··on Blue-light glasses may not reduce eyestrain from screens, study says
Simple. When the original poster tries a new pair, they assume it may not work. If they happen to feel pain they mentally mark the glasses as “one of the bad ones”. From then on the placebo effect won't apply to that pair because they don’t believe it will help.

Humans are great at finding patterns in randomness like this; this is exactly why superstitions are so prevalent.

NickM··on Blue-light glasses may not reduce eyestrain from screens, study says
“It works for me” does not imply “it can’t possibly be a placebo”. Both could be true.

I’m not saying the blue light thing is or isn’t real, but I see this kind of argument made all the time, and I can’t tell if people just don’t understand what the placebo effect is or if everyone just thinks they’re special and the placebo effect doesn’t apply to them or what.

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