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cm2187

26,264 karma · joined June 27, 2014

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cm2187··on How Has Roman Concrete Lasted for Millennia? 1,900-Year-Old Latrine Offers Clues
They could do large arches too, see https://en.wikipedia.org/wiki/Basilica_of_Maxentius
cm2187··on How Has Roman Concrete Lasted for Millennia? 1,900-Year-Old Latrine Offers Clues
I am glad the pantheon still stands. But the real question is are there really any modern structure that will be worth preserving for 2000 years. Architects have long abandoned aiming for beauty to aim for originality. Originality doesn’t last. Humans in 2000 years will only wonder why on earth our society could manufacture atom level micro ships but couldn’t come with a single structure worth preserving.
cm2187··on Codex Micro
This is more expensive than a streamdeck. The streamdeck has LCD keys you can customize dynamically.
cm2187··on SpaceX wants to launch 100k more Starlink satellites for 100x the bandwidth
Am I right to understand that it will do nothing to big cities, where you share the radio frequency with lots of users just like a wifi? What it the minimum radius where two satellites will not interfere with each others (chatgpt says 40-130km radius if not allocated more spectrum)?

If that understanding is correct it means the addressable market is countryside and transportation (planes/ships/RV). Which necessarily makes starlink at most a fairly modest size ISP in terms of valuation?

cm2187··on Grok 4.5
You mean as opposed to Gemini's "subtle" woke push with diverse nazi soldiers?
cm2187··on How to Build a Minimal ZFS NAS Without Synology, QNAP, TrueNAS (2024)
Snapshots don’t protect you from malware. I bet 99% of home users use the same credentials on all their machines, once a malware compromised one, the others are compromised within seconds.

[edit] also snapshots aren’t really workable for large files. Remux a movie file and now it occupies twice the space.

cm2187··on How to Build a Minimal ZFS NAS Without Synology, QNAP, TrueNAS (2024)
Fire, malware, accidental deletions, capricious RAID controller (pre-ZFS). And that’s only the stuff that happened to me. Add power surge, theft, correlation in SSD failures (eg power on counter overflow firmware bug), damaging the array while moving, etc.
cm2187··on How to Build a Minimal ZFS NAS Without Synology, QNAP, TrueNAS (2024)
For home usage, if you have backups raidz1 is fine (just do an incremental backup at the first sign of trouble). If you don’t have backups, then you probably shouldn’t be running a NAS in the first place.
cm2187··on Automate Excel with Python: From manual grind to one-click workflow
Terrible title. Nothing to do with automating excel. From what I can tell it seems to be about ingesting spreadsheets into panda (and incredibly narrow use of Excel) and working outside of Excel.
cm2187··on Should every baby's DNA be sequenced?
Well if you mandate DNA patching, how do you enforce it?
cm2187··on Should every baby's DNA be sequenced?
I agree, though one could make the argument that our modern nanny states have been pretty brutal at enforcing health policies during covid, and if they convince themselves that they can eradicate certain diseases by mandating DNA patching or pregnancy terminations, them doing so "for our own good" is in the realm of the possible.

But we are in coercion territory. What I am saying that we already practice eugenics without coercion, we just don't call it that.

cm2187··on Should every baby's DNA be sequenced?
The problem is "eugenics" has two meanings which is unhelpful for this discussion.

1) criminal practices of forced sterilisations, ethnic cleansing and mass assassinations to phase out undesired genes

2) the more generic practice of trying to improve the genetic characteristics of your children.

I don't think there is much point in debating 1). But we would be naive to think we are not already doing 2). What else is a prenatal test for down syndrome? What else is selecting your mating partner for desirable characteristics? In animals it's called breeding and it works pretty well. And if you can patch the DNA of your kids to remove potential risks of cancers or other deficiencies, why wouldn't you? Is it better to let cancer take its toll?

cm2187··on Professor denounces mass AI fraud on an exam at Brown
Same with job interviews. Right now Hr insists on us doing them over zoom so we get this absurd result that we eliminate candidates that perform too well to be true, at the risk of eliminating a genuine excellent candidate. You have to look a bit messy!
cm2187··on Micron locks in historically high memory prices for five years
PC enthusiasts aren't exactly sentimental when in front of a spec sheet and a price list. Plus where else are you going to go. All manufacturers are hiking up their margin if you believe their stock prices.
cm2187··on Micron locks in historically high memory prices for five years
Why? Part of the problem is that chip manufacturers (from tsmc to to memory makers) are reluctant to ramp up production as the AI bubble may pop and they would find themselves with huge over capacity, a scenario they have gone through many times.

By giving them stability of cash flows, the AI companies are enabling them to make those investments and to ramp up production. That's a good thing, not a bad thing. Over time it should ease the squeeze on chips.

cm2187··on Micron locks in historically high memory prices for five years
The article says a large part is paid upfront.
cm2187··on OpenAI unveils its first custom chip, built by Broadcom
In fact any application where the task is stable and the model good enough to address that task. As you suggest, industrial applications where a robot must deal with variants of the same repetitive task. Or a military drone which needs to be jamming proof.
cm2187··on Anthropic says Alibaba illicitly extracted Claude AI model capabilities
Stupid question: I was under the impression that these models were trained on PB of data. Surely the amount of questions/response they can extract from querying a bigger model (Claude) is fairly modest. How is it not a drop vs the training dataset?
cm2187··on OpenAI unveils its first custom chip, built by Broadcom
Random thought. Once models stabilise, could you possibly hardcode the model in gates? Or are they too large for a single chip?
cm2187··on Founding a company in Germany: €9600, 152 days and I still can't send an invoice
But I understand the admin has gone up significantly. Though I presume AI is pretty good at generating the boiler plate bureaucratic work (privacy policy, anti slavery statements, etc).
cm2187··on Oracle shed about 20k roles globally in the last year
Say what you want about their business practices, their products are top notch.
cm2187··on Oracle shed about 20k roles globally in the last year
A bit premature I think. Right now it is employees making room for AI investments
cm2187··on Polymarket has flooded social media with deceptive videos by paid creators
I have news for you. That burger is the McDonald's commercial? It's most likely made out of plastic. That happy lottery winner? Probably a stock photo from one of the major visuals providers. And I am ready to bet my bankers don't have this hollywood white teeth looking of banks commercials. Since when is advertising real?
cm2187··on Linux eliminates the strncpy API after six years of work, 360 patches
Today yes, but 40 years ago someone made the decision that a string was a char array and that every string manipulation going forward would require manipulating arrays. Talking about costly decisions.

It’s actually interesting to compare the pain and suffering of switching to a string datatype in the 80s (refactoring the limited code base then) vs the next 40 years of unnecessary boiler plate syntax and bugs for not having this type in key APIs.

cm2187··on Linux eliminates the strncpy API after six years of work, 360 patches
A lot of pain and suffering to avoid having a string datatype.
cm2187··on 16-year-old SATA II SSD survives 1 petabyte of writes, 25x the drive's rating
The drive internally usually stores data in blocks larger than the 4k blocks it pretends to use to the OS (say it uses 16k blocks internally). So if your writes are sequential, it will most likely write the same 16k block in one go. If you write random 4k blocks, it will have to rewrite a full 16k block for every 4k block you write, hence write amplification.

So if you fill the drive over and over using sequential writes you can expect way more endurance than if you write random blocks.

cm2187··on 16-year-old SATA II SSD survives 1 petabyte of writes, 25x the drive's rating
Sequential vs random writes make a world of difference.
cm2187··on 16-year-old SATA II SSD survives 1 petabyte of writes, 25x the drive's rating
That’s why SSDs have overprovisioning, more so for enterprise drives. And why TRIM is important. That being said most workloads are sequential, particularly retail usage. Much easier to deal with for the controller than enterprise workload ratings that assume 4k random writes
cm2187··on Americans express unease over SpaceX's influence on retirement savings
Plus if AI is indeed a bubble, investors are already up to the neck in it. Think of all the key stocks of the S&P and Nasdaq that are lifted by AI: nvidia, microsoft, amazon, oracle, micron, intel, amd, etc. And add their lenders and the whole datacenter supply chain.
cm2187··on Swiss parliament lifts ban on new nuclear power plants
There are some european success stories in high speed rail too (France). China doesn’t let itself entangled in planning restrictions. US and European countries love over regulation and litigations. That’s a choice, and it comes with a steep cost.
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