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dubya

532 karma · joined September 21, 2011

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dubya··on Realistic computer-generated handwriting
Try 'XXX'. Definitely too much variation with what should be the same glyph. It doesn't seem to know about ampersands either.
dubya··on Commodore Christmas Demo (1982) [video]
This reminded me of typing in a program to play a reggae version of "Rudolph the red-nosed reindeer" from Family Computing. It was not the coolest magazine, but it was what my school library subscribed to. A search reveals it appeared in the December 1985 issue!
dubya··on Bestselling books have been getting shorter
As a teacher, I totally agree. Understanding something when the teacher presents material is not at all the same thing as digging in and trying some problems yourself.
dubya··on Who knew the first AI battles would be fought by artists?
> The first is that textual input and treating the model as a function (command in -> result out) are sufficient for anything. No, this is a fundamentally deficient way to give artistic directions, which is further handicapped by primitive models and weak compute. Text alone is a toy

Some artists just do the descriptive part though, right? The name I can think of is Sol LeWitt, but I'm sure there are others. A lot of it looks like it could be programmed, but might be tricky.

dubya··on A neat XOR trick
I never think of POPCNT because it's not a language primitive in any languages I use.

I would do it by storing the product of the counts; divide by the outgoing count before decrementing, multiply by the incoming count after incrementing. If the product is one they're all unique. Scaling should be comparable to POPCNT.

dubya··on What I'd like to see in Emacs
That's what he said, more or less: "The problem comes not from the language JavaScript, but from the fact that browsers, by default, ..."

I think it's the cultural issues he's getting at. Minified or otherwise obfuscated elisp packages would rightly be viewed with suspicion. Unauditable JS is the norm, right?

dubya··on What I'd like to see in Emacs
The "by default" is an important distinction.
dubya··on Go First Dice
If you look at just the first 5 dice and compute the probability that player one rolls lowest, of the 6^4 combinations of rolls the other players can make: 1 beats all 6^4; 16 beats 4^4, 17 beats 4^4, 32 beats 2^4, 33 beats 2^4, and 48 beats nothing. So player 1 is lowest 1840 out of 6^5, or ~23.7%.

A similar argument shows player 5 rolls lowest 1414 out of 6^5, or only 18.2% of the time.

I don't have a good intuitive explanation though.

dubya··on How stdbuf works
On Safari the 'notequal' is double-width, and you can select just half of it, which I didn't expect.
dubya··on Largest score declines in NAEP mathematics at grades 4 and 8
I see how that could happen, and probably has. But, for example, I can also see how the top x black applicants to Harvard would be capable of doing very well at Harvard even if those applicants are not in the top 4.6% of SAT scorers who apply to Harvard. (where x is maybe 14% of entering class size to be proportional to US population, and 4.6% is I think the Harvard acceptance rate.)

Anyhow, it's a tough problem and I don't know the right answer and don't envy anyone having to set admission policies.

dubya··on Largest score declines in NAEP mathematics at grades 4 and 8
Standardized test scores are correlated with race, but schools want to admit a more diverse set of students. If they consider test scores and still try for more diversity, it looks a lot like discrimination against groups with high scorers, like Asians. I think the SCOTUS has agreed to take a case against Harvard pertaining to this.

My own institution did not require standardized tests for a couple of years, mostly because of Covid, and it's been a bit of a mess. Test scores turn out to be good for placement in math classes.

dubya··on iPad Pro M2
The iPad with pencil is really useful for marking up student papers. I bought one during Covid when everything was being turned in online, but some students still prefer to turn in scans rather than paper.

The downside is that Apple doesn't support user accounts, so I won't use anything that everyone in my family shouldn't have access to. Grading only works because it's easy to log out of Canvas. A lot of the nifty features require you to be logged in with your Apple ID, and I'm just not buying an iPad for every family member who might like to use it sometimes.

dubya··on iPad Pro M2
The orientation is just a software problem. No reason Zoom et al can't have an option to crop to the right aspect ratio.
dubya··on Open-source node-graph based video compositing software
Your description of node displays reminds me of "Robot Odyssey".
dubya··on An ‘everything app’ would be bad for liberal democracies and free markets
That's a very uncharitable reading. "Works in China" in an Internet context would have to include something about having government approval and being subject to government control.
dubya··on EU Passes Law to Switch iPhone to USB-C by End of 2024
Better transfer speed would be a benefit to USB-C. It comes up using an iPhone as a camera when wifi is congested or just not available, e.g. a college campus with device registration required. Dongles for phone to HDMI could work without needing compression as well.
dubya··on EU Passes Law to Switch iPhone to USB-C by End of 2024
Not entirely true. It came with a little female-female lightning adapter so you could charge it with whatever other lightning cable you have. The pencil end of the adapter is deeper than the other end, I think so you can't plug a lightning cable into each end.
dubya··on DNS Providers as Piracy Fighters?
The numbers I could find are 0.24 firearm-related deaths/100K population for the UK vs 10.95/100K for the US. (https://worldpopulationreview.com/country-rankings/gun-death...)

By this metric, the US is better off that much of South and Central America. I bet if the stats were normalized by deaths/100K guns instead the US would look pretty good. (~17% drop for US, as we have more guns than people, but every other country has significant increases)

dubya··on Toyota CEO talks about why he isn’t all-in on EVs
Chevy Spark supposedly starts at $13600, available inventory seems to start at $14595 + tax, title license and fees. I have never bought a new car so I don't know the + part, but that's got to be getting close to $20k.
dubya··on An Introduction to Binary Decision Diagrams [pdf]
Knuth also has sample code here:

https://www-cs-faculty.stanford.edu/~knuth/programs.html

I couldn't get some of it to work due to pointer hijinks not cooperating with Macos, but it's fine in a Linux vm.

dubya··on Avoiding homework with code and getting caught
Canvas, which I think is pretty standard, has views, last access, and total access time for all pages. I don't think there's a way to choose not to track, and I've not seen a policy for what happens to the data.

Our school also has mandatory online trainings every year or two, with videos in a pop-up with most controls disabled. "document.querySelector('video').playbackRate = 1000;" used to save a lot of time, but with cross-site protections it's easier to use a plugin, which is much slower to adjust.

dubya··on The free YouTube tier is about to become unbearable with even more ads
Wipr seems to work pretty well. It doesn't block the stupid overlays that YouTube puts over the last 20 seconds or so of videos (not ads, but watch this or this next or subscribe to this channel...), but I don't think that uBlock does either.
dubya··on Handwritten thank you notes increase sales
This has been going on for a while. I've seen it mostly in the "I will pay cash for your house" industry. The process has definitely gotten more convincing; before, all the letter shapes would be the same, but now there's enough variation that it's plausible that these notes are handwritten if it weren't for the context.
dubya··on Jonathan Blow on Societal Collapse (2019)
> but anybody who remembers computers 20 years ago being faster either has some serious rose tinted glasses, or was not using computers 20 years ago.

Or they're using something like the grade book in Canvas, a very popular LMS, and finding that it is in fact slower than GeoCalc on a C-64.

dubya··on I love my GPD Micro PC
The first few stops with toe clips are pretty dicey.
dubya··on The End of Manual Transmission
I always hated automatics because I had only driven cheap rental cars with automatics. My family got a Mazda 3 with automatic a few years back, and it's so much better. I still prefer a stick in some situations, but it's not constant misery the way an Aveo or a Versa or a Yaris were.
dubya··on “Magic links” can end up in Bing search results, rendering them useless
It's not just the free client. My university uses O365 (?) and the links are in emails checked on other clients (Mail.app of ios/macos).

Admin has also turned on "You don't often get email for __" warnings that edit the email so that gets included in replies. Very useful when you could a new large cohort of student email correspondents each semester :(

dubya··on Writing one sentence per line
For me it's a holdover from a high school typing class, but I find it useful. I mostly write in LaTeX which just ignores the extras. On the iphone, two spaces are replaced by a period and a space, which is quite handy.
dubya··on Writing one sentence per line
Two spaces between sentences makes this easy, and should be just as easy a habit as one sentence per line.
dubya··on Webcams aren't good enough
Something has changed in Monterey so it is possible to use virtual webcams even with Apple apps (Facetime, Safari, etc). See https://daringfireball.net/linked/2022/05/06/camo-1-6

So it should work not just for iPhones.

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