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DerekL

1,049 karma · joined January 19, 2010

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DerekL··on An oral history of "We Built This City," the worst song of all time (2016)
The lyrics are deliberately humorous. Also, that video is clearly a parody of Chris Isaak’s “Wicked Game”. https://www.youtube.com/watch?v=jd-qI62gNJM
DerekL··on An oral history of "We Built This City," the worst song of all time (2016)
The song was released in 1986, which is years before the Video Toaster and the LightWave 3D software were released. They might have used an Amiga 1000 for some of it.
DerekL··on Steve Jobs, NeXTSTEP, and early object-oriented programming (2016)
Note that creating an arcade game at that time wasn't writing a computer program, it was designing a finite state machine out of discrete logic chips.
DerekL··on SFO Ballot Measure Reflects 10-Year Battle to Reinstate 8th-Grade Algebra
Title should say “SF”, not “SFO”. SFO is the code for the airport.
DerekL··on M4 MacBook Pro
That was announced on Monday, with the new iMacs.
DerekL··on SF MUNI approves $212M technology from Hitachi to replace floppy disks by 2028
A previous news story claimed that the system used 5.25-inch disks, instead of 3.5-inch, which would have been strange for a system that was purchased in 1998. It turns out that it actually was 3.5-inch disks.

The correction is in this article: https://sfist.com/2024/08/07/muni-to-update-train-control-sy....

DerekL··on SF MUNI approves $212M technology from Hitachi to replace floppy disks by 2028
Also, the logo is all-caps.

“Muni” isn't an acronym, it's short for “Municipal Railway”.

DerekL··on SF MUNI approves $212M technology from Hitachi to replace floppy disks by 2028
The title is misspelled. It should be “Muni”, like the article's title, not in all caps.
DerekL··on 52 Factorial
When playing draw poker, you only need to select 10 cards from the deck, because the other cards will never be played. So that's 52⋅51⋅…⋅43 = 57,407,703,889,536,000, which needs 56 bits.
DerekL··on Can Brown Noise Turn Off Your Brain?
Title needs (2022).
DerekL··on Mathematicians define new class of shape seen throughout nature
Dupe: https://news.ycombinator.com/item?id=41618685

Also, the actual title uses “discover”, not “define”.

DerekL··on Neither Elon Musk nor Anybody Else Will Ever Colonize Mars
A scientific outpost on Mars is actually feasible, but such an outpost would be funded by grants from the government or private foundations.

It's a self-sufficient colony that's not possible right now or anytime soon. You'd have to spend so much to create an air-tight and heated environment that could generate air, water, and food. How are you going to pay for, especially when anything you can't make yourself has to be rocketed in from Earth? Is there anything on Mars that you could sell back to Earth?

DerekL··on Why good developers should use bad computers
This is entirely wrong. Instead, you should do routine performance testing on low-end machines, and do your work on reasonably high-end machines.
DerekL··on America's Bad Math Scores Are a Problem
> In the most recent Program for International Student Assessment tests in math, or PISA, U.S. students scored lower than their counterparts in 36 other education systems worldwide. Students in China scored the highest.

On PISA, the US results are from the entire country, while the Chinese results are only from selected provinces.

DerekL··on America's Bad Math Scores Are a Problem
Title needs (2023).
DerekL··on Caltrain's new electric trains
* brakes
DerekL··on SpaceX accused of dumping mercury into Texas waters for years
It looks like page 79 of that doc has a typo. It says mercury in sample 1 is 113 µg/L. Maybe they meant 0.113.
DerekL··on Interstellar movie black hole implemented with Einstein's equations in C++
Title is misspelled, should be “black hole” (two words).
DerekL··on Predicting Harris' VP nominee based on who's scrubbing their Wikipedia page most
Gavin Newsom won't be picked. If both the presidential and vice-presidential candidates are from the same state, then the electors from that state can't vote for them.
DerekL··on Ukrainian Weaponized Yamaha Jet Ski with Starlink Antenna
It shouldn't be called a “Jet Ski”, because that's a trademark of Kawasaki.
DerekL··on Tail Recursion for Macros in C
I was wondering the same thing about making macros optionally recursive. Because if they were recursive, then that feature and `__VA_OPT__` would be enough to make them Turing-complete.
DerekL··on Fossil of Neanderthal child with Down's syndrome hints early humans' compassion
Also, Down's syndrome causes all sorts of additional health problems. Maybe they let the kid starve at age 6, or the kid got sick and died anyway.
DerekL··on Atari 520ST Review in Creative Computing – By Paul Lefebvre
The original chip set (OCS), which debuted with the Amiga 1000 in 1985, could display 320 by 200 in four colors, or 640 by 400 in 16 colors, and the colors selected from a gamut of 4096. This is non-interlaced in 60 Hz. A PAL display would have higher vertical resolution in 50 Hz.

It could go up to 16 colors in high res or 32 in low res, but this could slow down other operations.

DerekL··on Europe's biggest problem: It is falling way behind America's powerhouse economy
*shtup, or schtup
DerekL··on The code that lived in my head rent free for 30 years
I wonder why uninstalling the hard disk and installing it in a different computer was the best solution.

Were the files so big that it would have used too many floppies? Did the two computers use different sizes of floppies? Could he not afford blank floppies (but he could afford damaging his hard disk)? Did he not have the right software to split a file into pieces to fit on multiple floppies?

DerekL··on What kind of bug would make machine learning suddenly 40% worse at NetHack?
Here's the previous discussion of the original Twitter thread: https://news.ycombinator.com/item?id=40472226.
DerekL··on Spotify won't open-source Car Thing, but starts refund process
Spelling nit: though the logo is all-caps, the company is called “Visa”.
DerekL··on County sheriffs wield lethal power, face little accountability
This part is relevant to Hacker News:

> A Northern California sheriff accepted bribes to grant gun permits to political donors.

That was Laurie Smith, sheriff of Santa Clara County.

DerekL··on The derivative of a number (2014)
Title needs (2014).
DerekL··on 1950s Sci-Fi Style Computers, Powered by a Z80, Built in Holland
On Atari 8-bits, the filesystem ran on the computer itself. There was an MOS 6507 processor in the drive, but that was for communicating on the SIO bus.

https://en.wikipedia.org/wiki/Atari_1050

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