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chasil

8,497 karma · joined December 20, 2016

Pride, wrath, sloth, lust, greed, envy, and gluttony. What opposes them?
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chasil··on Biology might not be quantum, but its math is quantumlike
Bilology is quantum? It is the bottom of the food chain.

https://www.kavlifoundation.org/news/unraveling-the-quantum-...

Edit: FTA, "In photosynthesis, for example, organisms use specialized pigments and proteins to harvest light with nearly perfect quantum efficiency; they convert almost every incoming photon into useful chemical energy."

Edit: this is about standing waves and overtones: "In 2024, Scholes found a way to design complex networks of oscillators such that they produced emergent states — stable patterns of synchronized behavior, like a crowd that claps in time — that could be mathematically described as vectors in a Hilbert space."

chasil··on Btrfs/ZFS/bcachefs under workloads classic benchmarks skip
The more practical advice is to resize hard partitions down by 5-10%.

I have a loopback mount on an fallocate file with a btrfs filesystem inside of it at work. I'm using send/receive to make sure there is hope of recovery.

I wrote this several years ago.

https://www.linuxjournal.com/content/btrfs-centos-living-loo...

chasil··on The Curious Power of Punctuation
The play and motion picture Wit by Margaret Edson fixates on a poem by John Donne, Death be not Proud.

The fixation is on the last line of the poem:

And death shall be no more; death, thou shalt die.

The assertion is that Donne did not intend the use of a semicolon, and converting it to a comma significantly alters the meaning, profoundly uplifting the aura of spirituality.

The play:

https://en.wikipedia.org/wiki/Wit_(play)

The poem:

https://en.wikipedia.org/wiki/Death_Be_Not_Proud

Discussion:

https://lavelleporter.com/2015/02/13/readingwit/

"Nothing but a breath—a comma—separates life from life everlasting. It is very simple really. With the original punctuation restored, death is no longer something to act out on a stage, with exclamation points. It’s a comma, a pause."

chasil··on Microsoft killed FoxPro in 2007. Anyway, here's FoxPro revived
I feel good about you, and that you are a good person, through and through. We don't say that enough here.

The permissions exploits on SQLite and dBASE are identical, sad to say.

You're a good guy. I respect you.

chasil··on Microsoft killed FoxPro in 2007. Anyway, here's FoxPro revived
Many of the complaints you make apply to SQLite as well?

I don't know if dBASE variants support bind variables. That isolation is really required to avoid the "Bobby Tables" effect.

https://bobby-tables.com/

I'd prefer to see the dBASE language adapted to run on SQLite files, as they are a far more profound standard.

chasil··on Btrfs/ZFS/bcachefs under workloads classic benchmarks skip
You were absolutely correct to be rude.

A pragmatic fix would trigger read-only failure mode at 90% usage of the mount as a whole, with all subvolumes.

chasil··on Btrfs/ZFS/bcachefs under workloads classic benchmarks skip
SUSE also famously uses btrfs on the root file system.

Don't ever let it fill up!

chasil··on AI chatbots give wrong answers to financial queries 'most of the time'
While I also practice Bogle's approach from The Little Book of Common Sense Investing, even with this baseline there are some subtleties.

-VFIAX is currently $707/share. Fidelity's FXAIX does not have to be purchased in increments of a share price, and this fund's expenses are lower.

-There are versions of the S&P 500 for taxable accounts that minimize capital gains.

-Vanguard has a total-market index, VTSAX, that is mentioned in the book.

-Vanguard also has a non-U.S. total market fund, VTIAX, that avoid the current CAPE problems of the U.S. market.

Claude is very familiar with Bogle's approach, likely because the pirated book was part of the training set.

chasil··on One-Electron Universe
CP-violation would appear to rule this out.

https://en.wikipedia.org/wiki/CP_violation

The main referenced wiki suggests that the missing positrons are inside protons, but recent a recent LHC experiment asserts CP-violation over baryons.

chasil··on Why Does the Universe Expand?
There are three parameters that define a black hole: mass, spin, and charge.

There is nothing preventing spin from being zero, as far as I know.

chasil··on Why Does the Universe Expand?
I understand that, for a stationary black hole without spin (which does not exist), an object that falls into it will freeze, then the image will redshift until it disappears.

https://en.wikipedia.org/wiki/Event_horizon

I also understand that there is a cosmological (event) horizon, where galaxies freeze, then rapidly redshift in the same way. This happens because these distant objects are accelerated away from us faster than light.

It appears to me that we are seeing black hole event horizons from the outside, and the cosmological event horizon is seen from the inside.

The similarities do give one pause.

The mechanisms are different; one is gravity, and the other is dark energy.

https://en.wikipedia.org/wiki/Cosmological_horizon

chasil··on Backups Aren't Simple
For my Oracle Linux systems, I rely on the vendor ReaR RPM package for the baseline backup. This is similar to the "Ignite" utility that I used in my HP-UX days.

https://relax-and-recover.org/

This is two-fold useful, first as it enables boot from backup media for total recovery, second in that it creates a backup.tar.gz that holds everything that was not explitictly ignored in the /etc/rear/local.conf file.

I'm running Oracle databases on these systems (and the local.conf is configured to ignore the datafile directories). I have standby databases (not Dataguard in that I don't have online redolog replication) that allow me to recover them to the primary in a disaster, with some loss of committed transactions.

I finally have rsync configured for some scratch temporary files.

I have dallied with btrfs snapshot replication for home directories (in a loopback mount). My vendor support (via a CSI number) has been on and off, so I don't use btrfs in areas that we need it most.

My replacements do not like the complexity (and I am retiring).

chasil··on Most people prefer traditional architecture
This is not a general truth.

The Dana-Thomas House, designed and executed by Frank-Lloyd Wright, spared no expense in an age when skilled craftsmen were affordable.

Are there seeds of the Guggenheim in New York between these two buildings?

https://www.ourchanginglives.com/springfields-dana-thomas-ho...

https://www.tripadvisor.com/Attraction_Review-g60763-d108687...

chasil··on Most people prefer traditional architecture
While my karma might get incinerated with this quote, it is incisive on traditional architecture. The author is reviled by many.

“Yes, God damn it, the Parthenon!”

The ruler struck the glass over the picture.

“Look,” said Roark. “The famous flutings on the famous columns—what are they there for? To hide the joints in wood—when columns were made of wood, only these aren’t, they’re marble. The triglyphs, what are they? Wood. Wooden beams, the way they had to be laid when people began to build wooden shacks. Your Greeks took marble and they made copies of their wooden structures out of it, because others had done it that way. Then your masters of the Renaissance came along and made copies in plaster of copies in marble of copies in wood. Now here we are, making copies in steel and concrete of copies in plaster of copies in marble of copies in wood. Why?”

chasil··on GEFS on OpenBSD: A Early Preview
Both ZFS and modern btrfs support a large set of checksums.

Both implement sha256, which does impose a heavy speed penalty.

ZFS allows you to adjust the checksum on the fly, using something faster (Fletcher) if desired.

In btrfs, a global checksum is set at filesystem creation; xxhash is the best modern option.

There is a website: https://xxhash.com

Deduplication adds concerns for a strong hash free of collisions.

chasil··on Macbeth and His Problems
Did they avoid peacock feathers onstage?

Reciting lines from The Two Gentlemen of Verona and A Midsummer Night's Dream is also rumored to be helpful (from the last section).

"For the more athletically inclined, one should exit the theatre, spin around in a circle three times, and spit."

https://broadwaydirect.com/13-theater-superstitions-hallowee...

chasil··on Long-term melatonin use linked to 90% higher heart failure risk
As I understand it, tryptophan can become either niacin or serotonin in metabolism.

Serotonin is the natural source of all malatonin.

Niacin and tryptophan will maximize the serotonin pathway, but this is deadly with an SSRI.

chasil··on GrapheneOS Overhauled Default Apps and Secure Clipboard
LineageOS keyboard and the Trebuchet launcher would be most helpful.

I do miss keyboard symbols without shifting and icon packs.

chasil··on The many mysteries and lessons of the Bayeux tapestry
I would qualify that as X-rated propaganda.

https://www.historyextra.com/period/medieval/bayeux-tapestry...

https://www.medievalists.net/2012/11/who-was-the-mysterious-...

chasil··on Holden's Lightning Flight
The de Havilland Comet (involved in this event) also has a famously dark history as the first passenger jet.

This status was short-lived when square windows popped out of their frames at high altitude when the cabin was pressurized.

The line had a much longer service life hauling freight.

https://en.wikipedia.org/wiki/De_Havilland_Comet

chasil··on Qantas Airbus A380 engine failure in 2010 (2023)
I admit that I glossed over the section on the machining of the oil pipe, but the facility appears to bear most of the blame.

These were pulled and scrapped from the whole A380 fleet.

"Investigators also criticized the culture within the Hucknall facility that manufactured the HP/IP bearing hubs, identifying signs of complacency and widespread procedural non-compliance. A paperwork review showed that the required signatures were missing from 131 out of 138 retrospective concessions issued between 2009 and 2011, and a large number of minor non-conformances had not been properly handled through the normal chain of command."

chasil··on GrapheneOS says Pixel 11 has MTE support after all
One must believe that MTE was intended for use on this device, as it is present on everything down to the Pixel 6.

Everything else is in the realm of bean counters, I would think.

chasil··on GrapheneOS says Pixel 11 has MTE support after all
"Aside from MTE, Google downgraded the Pixel 11 series GPU compared to the Pixel 10 series in addition to reducing RAM for base Pro models."

I will make a note not to buy this model.

Is this the worst quality control lapse since the Huawei Nexus core failures?

chasil··on Europe's summer drought is so extreme that desertification is a growing threat
https://archive.ph/xXHBw
chasil··on Defrag98: Windows 98 Disk Defragmenter Simulator Online
At that point, you had to deal with questions of interleave.

https://en.wikipedia.org/wiki/Interleaving_(disk_storage)

chasil··on Defrag98: Windows 98 Disk Defragmenter Simulator Online
Defragmenting XFS is much less dramatic.
chasil··on I'm the Guy Who Destroys Antique Books After We Scan Them into Our Company's AI
Basic suggestion: many countries give much less time for copyright than the U.S.

Gutenberg Australia has all of Orwell online for download, legally:

https://gutenberg.net.au/plusfifty-n-z.html#orwell

Might I suggest that any copyright domain where these texts can be freely offered receive them as a secondary recipient?

Do this quietly.

Edit: "and sometimes a handwritten note from 1894 that I don’t bother to read"

From this time, there is no excuse. Preserve these digitally, as you found them, for the public good.

Alternate take: was the intellectual murder of this author required to feed your neural network? Do you realize how awful this looks?

To be legal: request an AI in Australia if you want it to know about Orwell.

Edit: Claude says: “Worth flagging: this is satire, not a real employee. It’s a McSweeney’s humor piece by Jack Loftus — the “guy who destroys antique books” is a fictional voice piece, not a real Anthropic person giving an interview.”

chasil··on Kumander Linux – A Linux Distro with a Windows 7 Desktop
As Microsoft has expressed, Aero is "cheesy."

Despite nostalgia, it was stripped in pursuit of a mobile-friendly UI (at the time).

'...calling the UI that debuted in Vista and continued in Windows 7, “cheesy” and “dated.”'

https://www.computerworld.com/article/1437474/microsoft-dump...

All Windows UIs will die, on Microsoft's time, not the user community.

chasil··on The treasury bond mess: is this the demise of the US as a safe haven?
Biden's debate performance, and the aftermath, are the well-recognized reasoning.
chasil··on Why older tech is sometimes safer from hackers
Here is a good example where this is not so. Unfortunately, my datacenter runs this vulnerable VMS release on an emulated VAX.

https://www.theregister.com/on-prem/2018/02/06/ghost-in-the-...

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