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Drew Lewis

@drew-lewis.com

Mathematician, faculty developer, and education researcher currently working as a consultant. He/him https://drew-lewis.com

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Latest posts by Drew Lewis @drew-lewis.com

Yeah the white piece with the slots is called the "nut". If a slot was worn down you might get buzz on that string open but not fretted. Could also be a string damaged near the nut, or just dirty in there.

06.03.2026 16:29 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Some things I would try:
1) Replace the string(s)
2) Clean the nut slot
3) Truss rod adjustment if the action looks low
4)Take it to a luthier, especially if you haven't had it set up in a while

06.03.2026 15:46 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Can we read the delightful email you inevitably sent to the editor? Purely for uh, scholarly purposes.

06.03.2026 15:34 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Let p be a prime -- say, two and a half score and seven

06.03.2026 02:45 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Neither my wife nor I is tied to an academic calendar anymore so we are taking a vacation at the time of our choosing and it just feels so weird. Like we are breaking rules or something.

But also, I feel no urge to keep up with the news today so I guess its working.

05.03.2026 23:47 πŸ‘ 11 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If you pay for an AI service, any of them, you are complicit in this.

05.03.2026 03:34 πŸ‘ 180 πŸ” 46 πŸ’¬ 2 πŸ“Œ 1

i think enthusiastic LLM use is mostly a stack of cognitive biases, unacknowledged plagiarism, and unmet needs in a trenchcoat

but also my main objections aren't about them being bad at tasks so i don't care if you think they've gotten better at it

04.03.2026 16:53 πŸ‘ 454 πŸ” 135 πŸ’¬ 8 πŸ“Œ 3

Did you get one of my papers again

03.03.2026 19:43 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I just can't get over what a bullshit thievery based scam all this is and there are still actual academics doing tra la la think pieces about how we need to embrace it or be left behind, I mean, look at the state of it. Look at it. It is bad, wrong, offensive, stupid and scuzzy.

02.03.2026 15:50 πŸ‘ 176 πŸ” 64 πŸ’¬ 3 πŸ“Œ 2

I was told that genAI would save me lots of time when reading articles.

And that's right! It's astonishing how much time I save!

As soon as an author says "so I just tried putting it into chatgpt" or "I asked claude to code it for me" then I stop reading!

TL;DR: you use AI, I stop reading.

02.03.2026 18:10 πŸ‘ 21 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0
The Retreat from DEI:
The Impact of Legal and Political Developments
on DEI Language in U.S. Private Foundations

Following the murder of George Floyd in 2020, large private foundations in the United States widely adopted language related to diversity, equity, and inclusion (DEI) on their public-facing websites. In 2023, a series of legal and political developments began reversing the institutional pressures that had encouraged this adoption: first the Supreme Court’s ruling in Students for Fair Admissions, Inc. v. President and Fellows of Harvard College (2023), then state-level anti-DEI legislation, and culminating in President Trump’s Executive Order 14151 (2025). Using the Internet Archive’s Wayback Machine, we constructed a longitudinal corpus of 3,612 archived web pages from thirteen large U.S. private foundations and tracked the frequency of sixty-seven DEI-related terms from 2019 to 2025. Among the nine foundations with data in both years, a Wilcoxon signed-rank test indicates a decline from 2023 to 2025 (one-sided p = .029, two-sided p = .059), with median usage falling approximately 40 percent. The decline was broad-based across many terms. These patterns are consistent with coercive isomorphism: the same process that drove widespread, convergent adoption of DEI language after 2020 now appears to be reversing it. The findings establish an empirical baseline for tracking how political pressure reshapes organizational communication about equity.

The Retreat from DEI: The Impact of Legal and Political Developments on DEI Language in U.S. Private Foundations Following the murder of George Floyd in 2020, large private foundations in the United States widely adopted language related to diversity, equity, and inclusion (DEI) on their public-facing websites. In 2023, a series of legal and political developments began reversing the institutional pressures that had encouraged this adoption: first the Supreme Court’s ruling in Students for Fair Admissions, Inc. v. President and Fellows of Harvard College (2023), then state-level anti-DEI legislation, and culminating in President Trump’s Executive Order 14151 (2025). Using the Internet Archive’s Wayback Machine, we constructed a longitudinal corpus of 3,612 archived web pages from thirteen large U.S. private foundations and tracked the frequency of sixty-seven DEI-related terms from 2019 to 2025. Among the nine foundations with data in both years, a Wilcoxon signed-rank test indicates a decline from 2023 to 2025 (one-sided p = .029, two-sided p = .059), with median usage falling approximately 40 percent. The decline was broad-based across many terms. These patterns are consistent with coercive isomorphism: the same process that drove widespread, convergent adoption of DEI language after 2020 now appears to be reversing it. The findings establish an empirical baseline for tracking how political pressure reshapes organizational communication about equity.

🚨What if some intrepid students and I decided to see if private foundations' public stances on justice were thin enough to fold under anti-DEI pressure? We tracked their website language using Wayback Machine. The retreat is real and it seems political vibes alone supercharged it. osf.io/29gda_v1

02.03.2026 10:21 πŸ‘ 158 πŸ” 66 πŸ’¬ 7 πŸ“Œ 2

If you were OK with β€œSubstack, the Nazi Bar,” maybe β€œSubstack, a front for the gambling on life and death casino” might convince you.

02.03.2026 14:52 πŸ‘ 552 πŸ” 300 πŸ’¬ 6 πŸ“Œ 8

Kind of wish it took longer, actually, given events this weekend 😭

02.03.2026 15:55 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I used it to productively procrastinate all through January, and ended up converting all of the images in both our Precalc and Calculus books to Prefigure. Highly recommend as a tool to distract from *waves hands* all this

02.03.2026 15:55 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Chuck Schumer: β€˜The American People Deserve A President Who Can More Credibly Justify War With Iran’ WASHINGTONβ€”In a pointed critique of President Trump’s foreign policy leadership, Senate Minority Leader Chuck Schumer stated to members of the press Thursday that β€œthe American people deserve a presid...

From The Archives:

28.02.2026 17:21 πŸ‘ 6721 πŸ” 1517 πŸ’¬ 58 πŸ“Œ 81

Cutesy stories about operation names but not a single one about the 85 (and counting?) children murdered at their school.

NPR appears to have fully devolved into a mouthpiece for the fascist state. It saddens me given their many years of being an excellent news source.

28.02.2026 17:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's pretty bleak. Some days I can block it out and find some optimism, but it's freaking hard.

28.02.2026 16:30 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I continue to be fascinated by the phenomenon whereby an expert engages with any of the LLMs on their field of expertise and is instantly horrified by the wrong answers, and then goes on to use it for things they are not experts in as though it won’t be just as bad for those.

27.02.2026 14:15 πŸ‘ 3160 πŸ” 933 πŸ’¬ 54 πŸ“Œ 91
Preview
The Handbasket 100% independent journalism by Marisa Kabas

Now that CNN and WBD are set to become state media in a sale to Paramount/Oracle/TikTok, it is especially important to support independent media.

Off the top of my head:

www.thehandbasket.co
404media.co
www.garbageday.email

Add your favorites in the replies. Fuck state-backed media monopolies.

26.02.2026 23:46 πŸ‘ 9582 πŸ” 3151 πŸ’¬ 524 πŸ“Œ 116

The purpose of a university budget model is what it does, justify managerial decisions.

26.02.2026 17:26 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
Preview
Are AI-generated summaries suitable for studying and research? Despite didactic, ethical, and environmental concerns, the use of GenAI is on the rise in academia. For most applications, the jury is still out on whether and how they will benefit education and rese...

Tired of AI hype posts? You might like my sober assessment of whether AI-generated summaries are suitable for studying and research. Spoiler alert, they are not.

The text is primarily aimed at students and researchers, but has much broader relevance. So share freely!: www.tue.nl/en/our-unive...

24.02.2026 18:47 πŸ‘ 292 πŸ” 140 πŸ’¬ 10 πŸ“Œ 15
Preview
Getting Started with PreTeXt (Mar 2026) | ScholarLattice Learn more on ScholarLattice.org!

Another free #PreTeXt workshop, this time on a Monday (3/2), only one hour, and focused on creating a worksheet using the pretext.plus online editor. Register here: scholarlattice.org/collections/...

23.02.2026 22:59 πŸ‘ 6 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

what even is the fucking point

23.02.2026 15:34 πŸ‘ 2867 πŸ” 725 πŸ’¬ 213 πŸ“Œ 297

Not just _can_ but _must_.

I do judge you* for still being on Twitter.

* very select exceptions exist for journalists reporting on that fascist hellhole

23.02.2026 13:49 πŸ‘ 49 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1
Preview
a man with a beard is crying and covering his mouth with his hand Alt: Michael Caine crying

When they brought his kids on the ice for the picture...

22.02.2026 23:49 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I love the WTF looks they are all giving the stuffed animal

22.02.2026 16:18 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Agreed, though I might argue that those are scholarly output---particularly, they are products of scholarly teaching.

22.02.2026 15:14 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

And this doesn’t just apply to scholarly output! Learning materials, assessment banks, videos, any tools you’ve adapted!

22.02.2026 14:37 πŸ‘ 18 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

The politics of AI are anti-human. This comparison is disgusting.

21.02.2026 20:21 πŸ‘ 122 πŸ” 43 πŸ’¬ 3 πŸ“Œ 0
Preview
Acting ethically in an imperfect world Life is complicated. Regardless of what your beliefs or politics or ethics are, the way that we set up our society and economy will often force you to act against them: You might not want to fly somew...

I was disappointed to read Cory Doctorow's post where he got weirdly defensive about his LLM use and started arguing with an imaginary foe.

@tante.cc has a very thoughtful reply here:

tante.cc/2026/02/20/a...

A few further comments, 🧡>>

21.02.2026 03:58 πŸ‘ 682 πŸ” 219 πŸ’¬ 20 πŸ“Œ 42