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jrieffel

@jrieffel.bsky.social
127 followers 202 following 464 posts

John Rieffel. Professor Clown or Clown Professor?

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jrieffel @jrieffel.bsky.social · 1h
I said not to ask
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jrieffel @jrieffel.bsky.social · 15h
Placed third (single speed category) in the Uncle Sam Grand Prix Cyclocross Race in Troy, NY today. Please clap. Also please do not ask how many riders were racing in that category.
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jrieffel @jrieffel.bsky.social · 08/10/2026
The future of the CS profession is going to be built around turning a vibe-coded slop demo that 80% kind of works into a viable product. Skilled developers will be as in-demand as COBOL programmers were for Y2K.
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jrieffel @jrieffel.bsky.social · 07/10/2026
Wait, what the hell dinner am I supposed to cook with baked squash and cold kale? So I ask myself every CSA pickup day in October.
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jrieffel @jrieffel.bsky.social · 07/10/2026
"But John," you might say, "the Peace Prize is awarded by Norway not Sweden, thus obviating your joke". To which I reply "please, have you actually met @orzelc.bsky.social ?!”
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jrieffel @jrieffel.bsky.social · 06/10/2026
unfortunately the only Swedish accent I can convincingly do is the "Chef" dialect.
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jrieffel @jrieffel.bsky.social · 06/10/2026
Once again forgot to prank call @orzelc.bsky.social early this morning with a Swedish accent. Next year?
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jrieffel @jrieffel.bsky.social · 02/10/2026
Did you accidentally plug your phone into the aux thinking it was a charger?
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jrieffel @jrieffel.bsky.social · 30/09/2026
I love this so much youtube.com/shorts/qPdt4...
youtube.com
Begun the potato wars have.
YouTube video by The Verge
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Reposted by jrieffel
Melanie Mitchell @melaniemitchell.bsky.social · 30/09/2026
Get it while it's still cheap!
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jrieffel @jrieffel.bsky.social · 30/09/2026
What the frigging hell is this Mark?
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Justin Joque @jjoque.bsky.social · 24/09/2026
I'd get it one piece at a time And it wouldn't cost me a dime You'd know it's me when I come through your town I'm gonna be flyin' around in style I'm gonna drive everybody wild 'Cause I'll have the only one there is around
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jrieffel @jrieffel.bsky.social · 23/09/2026
Just @ me, you cowards.
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jrieffel @jrieffel.bsky.social · 23/09/2026
this is so cool
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jrieffel @jrieffel.bsky.social · 23/09/2026
If you had told me a year ago that Trump would convert the USA to S.I. I wouldn't have believed you. I for one welcome the metric system. Wait, not that S.I.?
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jrieffel @jrieffel.bsky.social · 21/09/2026
Bring back Davis Sq. Redbones bike valet.
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jrieffel @jrieffel.bsky.social · 21/09/2026
Among all the coverage of the Arc de Trump/Sniper nest, it would be nice if news outlets remembered DCs not-too-distant experience with snipers. en.wikipedia.org/wiki/D.C._sn...
en.wikipedia.org
D.C. sniper attacks - Wikipedia
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jrieffel @jrieffel.bsky.social · 21/09/2026
Omg 😳 Not worth going back to Twitter over though.
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Jeremy Yoder says no war @jbyoder.org · 20/09/2026
ALMOST EVERY PEER REVIEWED PAPER HAS A SUMMARY OF KEY POINTS RIGHT BELOW ITS TITLE
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Ted Underwood @tedunderwood.com · 20/09/2026
Teaching Neuromancer this semester, and I'm proud to say that a CS undergrad in my class invented this joke independently
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jrieffel @jrieffel.bsky.social · 21/09/2026
Explaining *what* about 2026? The state of AI?
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jrieffel @jrieffel.bsky.social · 20/09/2026
Is it though? I guess it depends on what they (and you) mean by "sharing thoughts with a listener". I would argue that reinforcement learning/instruction tuning is not that. See their description of human language and communication in the paper.
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jrieffel @jrieffel.bsky.social · 20/09/2026
"Text generated by an LM is not grounded in communicative intent, any model of the world, or any model of the reader’s state of mind. It can’t have been, because the training data never included sharing thoughts with a listener, nor does the machine have the ability to do that. " (Bender et al '21)
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jrieffel @jrieffel.bsky.social · 20/09/2026
Doesn't their '21 paper explicitly include tuning, if not explicitly the phrase "instruction tuning"? I'm not sure how instruction tuning of an LLM by a frontier developer creates a "communicative situation" when the end-point interlocutor interacts with it.
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jrieffel @jrieffel.bsky.social · 20/09/2026
You're just asking journalists to do the AI's for them, Mark!
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Courtney Milan @courtneymilan.com · 19/09/2026
Referring to the harm as being caused by LLMs, when it is caused by people, actually serves to exonerate the people as if they did not make explicit decisions.
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jrieffel @jrieffel.bsky.social · 19/09/2026
"Don't worry we will save you from the killer Kaiju", says company that created and trained the killer Kaiju. (Note: existence of Kaiju has not been demonstrated)
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jrieffel @jrieffel.bsky.social · 18/09/2026
Update: jinxed myself. Thumbnail sized gash in the sidewall today. But was able to plug it, reinflate, and finish my commute.
A road bike tire with plugs poking out of a large hole. Sealant covers the area. A side view of a tire with a thick gash in the sidewall.
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jrieffel @jrieffel.bsky.social · 17/09/2026
This is the way! Chapeau! (your mileage may vary, but I haven't had a flat in 10 years and 30,000+ miles since switching to tubeless)
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jrieffel @jrieffel.bsky.social · 17/09/2026
", I mutter to myself, everytime a pickup truck close-passes me on my bike well over the speed limit.
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Jess Miers 🦝 @jmiers230.bsky.social · 13/09/2026
I did a somewhat deep dive into the recent OpenAI and Anthropic "hacks" for an upcoming interview. IMO, the AI companies are better off running with the "rogue AI" story because the real story is actually pretty embarrassing. Like making your Wi-Fi password "wifi" embarrassing. 🧵
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Melanie Mitchell @melaniemitchell.bsky.social · 10/09/2026
I wrote down my thoughts about the last several weeks of AI hell. aiguide.substack.com/p/misleading...
aiguide.substack.com
Misleading Metaphors, Real Risks
What To Fear from AI Agents and How to Reclaim Our Human Agency
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jrieffel @jrieffel.bsky.social · 10/09/2026
Enjoy!!! You can always pop surplus in the dehydrator and worry about the rest later! (says the guy with a pantry full of surplus boletes and chanterelle).
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jrieffel @jrieffel.bsky.social · 10/09/2026
Some people don't have pleasant responses to Chix. Whatever you do start with a small serving. Simple omelet? blog.mycology.cornell.edu/2006/10/31/e...
blog.mycology.cornell.edu
Eating the Chicken of the Woods :Cornell Mushroom Blog
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jrieffel @jrieffel.bsky.social · 10/09/2026
That was it! Goldstar in 2001-2 was a dark year. Fighter jets flying over Fresh Pond on my 9 mile bike commute to/from Brandeis on/after 9/11. Wilco's Yankee Hotel Foxtrot was the sountrack of the moment. The local music scene was a bright spot at the time.
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jrieffel @jrieffel.bsky.social · 10/09/2026
Of course I know! I was at a Davis Sq. show of his around that time, just outside the T stop. Akrobatik must have been there too. I think I was living in North Cambridge on Gold Star at the time.
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jrieffel @jrieffel.bsky.social · 10/09/2026
Is there room for Steve Earle's "The Revolution Starts Now"? Or Mr. Lif's "Home of the Brave"?
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jrieffel @jrieffel.bsky.social · 09/09/2026
They can't all be the The Cheese Board.
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jrieffel @jrieffel.bsky.social · 09/09/2026
This is Computer Modern erasure. #LaTeX
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jrieffel @jrieffel.bsky.social · 09/09/2026
You had me up to the overrated pizza. Agree to disagree b
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jrieffel @jrieffel.bsky.social · 06/09/2026
Not the 7th. FFS.
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jrieffel @jrieffel.bsky.social · 06/09/2026
Evidently my FedEx package has entered a wormhole to an alternate dimension where this Monday is the 8th not the 8th.
Package delivery scheduled for "Monday 9/08/2026".  That date is a Tuesday.
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jrieffel @jrieffel.bsky.social · 02/09/2026
*export* ban, ffs
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jrieffel @jrieffel.bsky.social · 02/09/2026
And other excellent hockey adjacent shows.
static.klipy.com
Canada Gooses? You Got a Problem With Me!
Alt: Canada Gooses? You Got a Problem With Me!
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jrieffel @jrieffel.bsky.social · 02/09/2026
If Canada really wants to fight tough (they should imo) then they should implement an expert ban on gay hockey tv shows.
static.klipy.com
Ilya Ilya Rozanov
Alt: Ilya Ilya Rozanov I'm coming to the cottage.
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jrieffel @jrieffel.bsky.social · 01/09/2026
I appreciated the stark honesty of the report but found very little tangible guidance. I guess it's comforting that even MIT is willing to admit they are struggling with the issue.
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jrieffel @jrieffel.bsky.social · 23/08/2026
<peeking meekly around my curtain of knotweed and bittersweet in Upstate NY>
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jrieffel @jrieffel.bsky.social · 23/08/2026
You get over it eventually, so I hear.
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jrieffel @jrieffel.bsky.social · 23/08/2026
Hey Cleveland! Tonight is you chance to see @simonelijahmusic.bsky.social at his final capstone performance of his summer tour. TreeLawn Social Club 7pm. Tix available online or at door.
Simon Elijah onstage at Uncommon Ground in Chicago
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jrieffel @jrieffel.bsky.social · 22/08/2026
Upstate New York, north of say, Kingston, totally undefended. The great Fort Ticonderoga, once a bulwark against Northern aggression, turned into a tourist attraction.
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