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2023lctgmeetingchats [2023.10.25 09:01] – Steve Isenberg2023lctgmeetingchats [2024.01.10 08:43] (current) – Steve Isenberg
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 These are a record of the chats that were passed during meetings in 2023.  They have been edited to a small extent.\\  These are a record of the chats that were passed during meetings in 2023.  They have been edited to a small extent.\\ 
 To find chats for a given day, for example July 19, 2023, search for datecode 20230719 (2023, month 07, day 19). To find chats for a given day, for example July 19, 2023, search for datecode 20230719 (2023, month 07, day 19).
-====20231025===+ 
 +====20231220==== 
 +===Potpourri=== 
 +Videos on Feynman and Computing Pi 
 +<WRAP prewrap> 
 +<code> 
 +08:31:54 From Barry Kort to Everyone: 
 + Syncthing. 
 +08:32:01 From tedpk to Everyone: 
 + Adam Adamandy Kochanski’s approximations of ´ π: 
 + reconstruction of the algorithm ∗ 
 + Henryk Fuks´ 
 + Department of Mathematics and Statistics, 
 + Brock University 
 + St. Catharines, Ontario L2S 3A1, Canada 
 + Toronto, Ontario M5T 3J1, Canada 
 + Email: hfuks@brocku.ca 
 + Abstract 
 + In his 1685 paper “Observationes cyclometricae” published in Acta Eruditorum, Adam 
 + Adamandy Kochanski presented an approximate ruler-and-compass construction for rectifi- ´ 
 + cation of the circle. It is not generally known that the first part of this paper included an 
 + interesting sequence of rational approximations of π. Kochanski gave only a partial explana- ´ 
 + tion of the algorithm used to produce these approximations, while promising to publish details 
 + at a later time, which has never happened. We reconstruct the complete algorithm and discuss 
 + some of its properties. We also argue that Kochanski was very close to discovery of continued ´ 
 + fractions and convergents of π. 
 +08:37:26 From Barry Kort to Everyone: 
 + Note:  Adam is NOT Ted’s older brother. ;) 
 +</code> 
 +</WRAP> 
 +[[lexingtoncomputergroup|return]] 
 + 
 +====20231213==== 
 +===Planning meeting=== 
 +<WRAP prewrap> 
 +<code> 
 +08:21:25 From tedpk to Everyone: 
 + Quantum Fields: The Real Building Blocks of the Universe - with David Tong  6,065,075 views  Feb 15, 2017 
 + According to our best theories of physics, the fundamental building blocks of matter are not particles, but continuous fluid-like substances known as 'quantum fields'. David Tong explains what we know about these fields, and how they fit into our understanding of the Universe.  
 +  
 + David Tong is a professor of theoretical physics at Cambridge University, specialising in quantum field theory.https://youtu.be/zNVQfWC_evg?si=N0-udysPRZ4ZS4jT 
 +08:25:09 From Barry Kort to Everyone: 
 + Brian Greene “World Science Festival” 
 +08:27:59 From tedpk to Everyone: 
 + BBC The Entire Universe 2016 
 + 7 years ago 
 + Eric Idle persuades Professor Brian Cox to present a lecture on the birth of the entire universe. Brian soon realises Eric is actually hosting a comedy and musical extravaganza. 
 +  
 + Aired December 26th 2016 BBC2. . https://dai.ly/x579m0o 
 +08:38:53 From John Rudy to Everyone: 
 + https://www.youtube.com/channel/UCbmNph6atAoGfqLoCL_duAg 
 +08:41:31 From Barry Kort to Everyone: 
 + Newton and Pi on “Veritasium” (18 minutes) ~ https://youtu.be/gMlf1ELvRzc 
 +</code> 
 +</WRAP> 
 +[[lexingtoncomputergroup|return]] 
 + 
 +====20231206==== 
 +===Hockney-Falco Thesis on the history of art=== 
 +<WRAP prewrap> 
 +<code> 
 +07:32:58 From Don Cooke to Everyone: 
 + There's camera obscura and camera lucida. My favorite employee, Peter Moeykens, has written an excellent iPhone app called "Camera Lucida". Alas, I'm an Android type and can't use it. (The "half-silvered mirror" device Harry's talking about is a camera lucida, not a camera obscura) 
 +07:36:31 From Bob Primak to Everyone: 
 + Camera Lucida AR for Android  https://camera-lucida-ar.en.softonic.com/android 
 +07:41:00 From Don Cooke to Everyone: 
 + I got a wonderful tour of Warsaw by a Polish friend who worked for a "cousin" company. He showed me the "Old Town" that had been so badly trashed by Hitler that during restoration they had to revert to paintings by Canaletto, who painted city portraits all over Europe in the 1700s, probably using a camera obscura. 
 +08:23:17 From Judy & Mike Alexander to Everyone: 
 + Wall paintings from the Roman period showed three-dimensionality. 
 +08:23:53 From Judy & Mike Alexander to Everyone: 
 + I saw this in paintings recovered from Pompeii. 
 +08:23:53 From Bob Primak to Everyone: 
 + Mechanical devices have been used to create realistic art for centuries, maybe millennia. Perspective in particular was created using guides and other tools. And there were guide tools to help artists keep a steady hand when drawing lines. 
 +08:28:18 From Don Cooke to Everyone: 
 + OMG, this has been fun! I have several tabs open to pursue. Thank you! 
 +08:32:48 From Barry Kort to Everyone: 
 + Harry, do you have anything to say (now or in a future Potpourri) about M.C. Escher and/or Teller (of Penn and Teller)? 
 +08:47:54 From Barry Kort to Everyone: 
 + James Burke ~ Connections on PBS 
 +08:48:27 From Barry Kort to Everyone: 
 + Also, “The Day the Universe Changed.” 
 +</code> 
 +</WRAP> 
 +[[lexingtoncomputergroup|return]] 
 + 
 +====20231108==== 
 +===Update on Chip Manufacturing=== 
 +<WRAP prewrap> 
 +<code> 
 +10:28:27 From Judy & Mike Alexander To Everyone: 
 + FYI - Silicon Photonics, mentioned earlier, was invented locally, at the AF Research Lab group Hanscom AFB (RIP), by Richard Soref 
 +10:48:28 From George Gamota To Everyone: 
 + how does industry support universities to provide the skilled workers? 
 +11:17:41 From tedpk To Everyone: 
 + Hiding stuff is hard -- but still more reliable than "Open source" for the most critical technology 
 +</code> 
 +</WRAP> 
 +[[lexingtoncomputergroup|return]] 
 + 
 +====20231101==== 
 +===ChatGPT, part 3: How LLMs (Large Language Models) work=== 
 +<WRAP prewrap> 
 +<code> 
 +09:57:05 From Barry Kort To Everyone: 
 + You also can’t share Covid, Flu, or Bad Breath. 
 +10:07:14 From Barry Kort To Everyone: 
 + Professor Dumbledore:  “Before I begin, I’d like to say a few words: Nitwit.  Blubber. Oddment.  Tweak.” 
 +10:23:36 From Carl Lazarus To Everyone: 
 + Why 12,288 dimensions?  Why not more, why not fewer? 
 +10:25:53 From tedpk To Everyone: 
 + The same concepts are being used all of the time by gmail -- but it never learns about "my style" -- a fundamental limitation on by design? 
 +10:26:42 From Mark Edelman To Everyone: 
 + I wonder why the numbers in the vector have so many digits in them. Does this “precision” increase with training? 
 +10:32:58 From Carl Lazarus To Everyone: 
 + # of dimensions = 3*2**12   was that just a choice of how much they could handle with some amount of computing power? 
 +10:46:09 From Barry Kort To Everyone: 
 + In Otter Speech-to-Text, sometimes Otter will go back and change an earlier word.  But GPT locks in a word once chosen, never going back to alter an earlier word.  Would that practice ever become an advance in these narrative language models? 
 +10:48:28 From Carl Lazarus To Everyone: 
 + "The sky is blue".  Blue is a good choice after "The sky is" but "is" by itself doesn't particularly map to "blue".  So the whole of the sentence so far determines the probabilities for the next word, correct?  How long a sequence is considered? 
 +10:55:02 From Carl Lazarus To Everyone: 
 + So far, this explains how ChatGPT can construct a reasonably sentence or even paragraph based on word relationships.  But how does it take into account the prompt you gave it? 
 +11:20:10 From tedpk To Everyone: 
 + It is obvious that the human brain doesn't work in this manner -- we have lots of neurons -- but only a "relative few" are operating at one time [total power consumption is muc too low to work like GPT 
 +11:24:36 From Barry Kort To Everyone: 
 + «Bidirectional» 
 +11:30:30 From John Howard To Everyone: 
 + How are the indexes of the various vectors computed?  They need to align to compute dot products. 
 +11:55:40 From Barry Kort To Everyone: 
 + Propagation of Misconceptions. 
 +</code> 
 +</WRAP> 
 +[[lexingtoncomputergroup|return]] 
 + 
 +====20231025==== 
 +===ChatGPT Part 2: Just how smart is ChatGPT?=== 
 +<WRAP prewrap>
 <code> <code>
 09:52:41 From Barry Kort To Everyone: 09:52:41 From Barry Kort To Everyone:
Line 43: Line 178:
  Mozart and Bach (among others) developed  a statistical process called “Dice Music” in which musical motifs could be synthesized by rolling the dice and entering the values into a table that selected the next note in sequence.  Mozart and Bach (among others) developed  a statistical process called “Dice Music” in which musical motifs could be synthesized by rolling the dice and entering the values into a table that selected the next note in sequence.
 </code> </code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]]
  
 ====20231018==== ====20231018====
 +===ChatGPT Part 1: Introducing ChatGPT===
 +<WRAP prewrap>
 <code> <code>
 10:21:47 From Yvette Tenney To Everyone: 10:21:47 From Yvette Tenney To Everyone:
Line 76: Line 215:
  Henry Louis Gates.  Henry Louis Gates.
 </code> </code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]]
  
 ====20230920==== ====20230920====
 +===Modulus Arithmetic===
 +<WRAP prewrap>
 <code> <code>
 11:08:32 From Barry Kort To Everyone: 11:08:32 From Barry Kort To Everyone:
Line 97: Line 240:
  Acoustic Bikes: The New Name for Non-Electric Bikes? https://discerningcyclist.com/acoustic-bikes/  Acoustic Bikes: The New Name for Non-Electric Bikes? https://discerningcyclist.com/acoustic-bikes/
 </code> </code>
 +</WRAP>
 +[[lexingtoncomputergroup|return]]
  
 ====20230913==== ====20230913====
 +<WRAP prewrap>
 <code> <code>
 11:26:55 From John Rudy To Everyone: 11:26:55 From John Rudy To Everyone:
Line 131: Line 277:
  lots of issues regarding mining of lithium  lots of issues regarding mining of lithium
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230906==== ====20230906====
 +<WRAP prewrap>
 <code> <code>
 10:29:58 From tedpk to Everyone: 10:29:58 From tedpk to Everyone:
Line 151: Line 299:
    Founder & Executive Director, Boston Dynamics AI Institute    Founder & Executive Director, Boston Dynamics AI Institute
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230830==== ====20230830====
 +<WRAP prewrap>
 <code> <code>
 11:05:54 From Steve Isenberg To Everyone: 11:05:54 From Steve Isenberg To Everyone:
Line 162: Line 312:
  Regarding Scientology, it is said that L. Ron Hubbard started the religion of Scientology as a joke.  Regarding Scientology, it is said that L. Ron Hubbard started the religion of Scientology as a joke.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230823==== ====20230823====
 +<WRAP prewrap>
 <code> <code>
 09:55:04 From Drew King To Everyone: 09:55:04 From Drew King To Everyone:
Line 193: Line 345:
  When I’m asleep in bed, I have very imaginative and creative dreams.  When I’m asleep in bed, I have very imaginative and creative dreams.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230816==== ====20230816====
 +<WRAP prewrap>
 <code> <code>
 10:15:30 From Bob Primak To Everyone: 10:15:30 From Bob Primak To Everyone:
Line 226: Line 380:
  Pompeii Still Has Buried Secrets https://www.newyorker.com/magazine/2021/11/29/pompeii-still-has-buried-secrets  Pompeii Still Has Buried Secrets https://www.newyorker.com/magazine/2021/11/29/pompeii-still-has-buried-secrets
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230809==== ====20230809====
 +<WRAP prewrap>
 <code> <code>
 10:11:28 From Steve Isenberg to Everyone: 10:11:28 From Steve Isenberg to Everyone:
Line 237: Line 393:
  Rclone: https://rclone.org/  Rclone: https://rclone.org/
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230802==== ====20230802====
 +<WRAP prewrap>
 <code> <code>
 10:29:58 From Bob Primak to Everyone: 10:29:58 From Bob Primak to Everyone:
Line 283: Line 441:
  Inflection Pi has a very interesting personality.  Inflection Pi has a very interesting personality.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230726==== ====20230726====
 +<WRAP prewrap>
 <code> <code>
 10:09:29 From Carl Lazarus to Everyone: 10:09:29 From Carl Lazarus to Everyone:
Line 301: Line 461:
  The amount and "seriousness" of radioactive species in fusion are much smaller than in fission reactors.  In principle, much less of a waste problem than for fission reactors.  The amount and "seriousness" of radioactive species in fusion are much smaller than in fission reactors.  In principle, much less of a waste problem than for fission reactors.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
  
 ====20230719==== ====20230719====
 +<WRAP prewrap>
 <code> <code>
 10:11:36 From Steve Isenberg to Everyone: 10:11:36 From Steve Isenberg to Everyone:
Line 327: Line 489:
  Ventoy  Ventoy
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230712==== ====20230712====
 +<WRAP prewrap>
 <code> <code>
 10:24:56 From Judy & Mike Alexander to Everyone: 10:24:56 From Judy & Mike Alexander to Everyone:
Line 354: Line 518:
  Reacted to "John Howard - You're..." with 👍🏼  Reacted to "John Howard - You're..." with 👍🏼
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230628==== ====20230628====
 +<WRAP prewrap>
 <code> <code>
 11:05:56 From Barry Kort to Everyone: 11:05:56 From Barry Kort to Everyone:
Line 372: Line 538:
  https://ted.com/talks/robert_ballard_the_astonishing_hidden_world_of_the_deep_ocean?language=en  https://ted.com/talks/robert_ballard_the_astonishing_hidden_world_of_the_deep_ocean?language=en
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230621==== ====20230621====
 +<WRAP prewrap>
 <code> <code>
 10:23:21 From Bob Primak to Everyone: 10:23:21 From Bob Primak to Everyone:
Line 389: Line 557:
  The brains overall of Neanderthals was larger than modern humans. But the frontal and prefrontal lobes are much larger in modern humans than in Neanderthals or Denisovans.  The brains overall of Neanderthals was larger than modern humans. But the frontal and prefrontal lobes are much larger in modern humans than in Neanderthals or Denisovans.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230614==== ====20230614====
 +<WRAP prewrap>
 <code> <code>
 10:14:55 From Bob Primak to Everyone: 10:14:55 From Bob Primak to Everyone:
Line 412: Line 582:
  Windows 11 Shake to Minimize was known as Aero Shake in Windows 10.  Windows 11 Shake to Minimize was known as Aero Shake in Windows 10.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230524==== ====20230524====
 +<WRAP prewrap>
 <code> <code>
 10:37:28 From tedpk to Everyone: 10:37:28 From tedpk to Everyone:
Line 427: Line 599:
  "test chambe" -- definitely MIT! (Boston accent)  "test chambe" -- definitely MIT! (Boston accent)
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230517==== ====20230517====
 +<WRAP prewrap>
 <code> <code>
 10:09:31 From Bob Melanson to Everyone: 10:09:31 From Bob Melanson to Everyone:
Line 466: Line 640:
  The confusion may have arisen from the fact that the Vatican was involved in the restoration of Notre Dame after it was damaged in a fire in 2019. The Vatican donated $10 million to the restoration effort, and Pope Francis sent a team of experts to help with the repairs. However, this does not mean that the Vatican now owns the cathedral. The Vatican's donation was simply a gesture of goodwill and support for the French people.  The confusion may have arisen from the fact that the Vatican was involved in the restoration of Notre Dame after it was damaged in a fire in 2019. The Vatican donated $10 million to the restoration effort, and Pope Francis sent a team of experts to help with the repairs. However, this does not mean that the Vatican now owns the cathedral. The Vatican's donation was simply a gesture of goodwill and support for the French people.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230503==== ====20230503====
 +<WRAP prewrap>
 <code> <code>
 10:38:43 From Judy & Mike Alexander to Everyone: 10:38:43 From Judy & Mike Alexander to Everyone:
Line 489: Line 665:
  Yeah 🙂  Yeah 🙂
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230419==== ====20230419====
 +<WRAP prewrap>
 <code> <code>
 10:22:33 From larry freier to Everyone: 10:22:33 From larry freier to Everyone:
Line 569: Line 747:
  I got scintillations during a very stressful passage of life, some 35 years ago.  I got scintillations during a very stressful passage of life, some 35 years ago.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230412==== ====20230412====
 +<WRAP prewrap>
 <code> <code>
 10:31:40 From Barry Kort to Everyone: 10:31:40 From Barry Kort to Everyone:
Line 608: Line 788:
  https://nordvpn.com/meshnet  https://nordvpn.com/meshnet
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230405==== ====20230405====
 +<WRAP prewrap>
 <code> <code>
 10:05:04 From Ted Kochanski to Everyone: 10:05:04 From Ted Kochanski to Everyone:
Line 632: Line 814:
  If Steve's source is correct, 20 mins would be round-trip time at about half the longest possible Earth-Mars distance.  If Steve's source is correct, 20 mins would be round-trip time at about half the longest possible Earth-Mars distance.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230329==== ====20230329====
 +<WRAP prewrap>
 <code> <code>
 10:22:33 From Bob Primak to Everyone: 10:22:33 From Bob Primak to Everyone:
Line 668: Line 852:
  What about "sacrificial drones"  What about "sacrificial drones"
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230308==== ====20230308====
 +<WRAP prewrap>
 <code> <code>
  Is the electron directionality seen in the Stern Gerlach experiment the same at the North Pole and the Equator?  Is the electron directionality seen in the Stern Gerlach experiment the same at the North Pole and the Equator?
Line 706: Line 892:
  how about gravitational waves and entanglement of photons?  how about gravitational waves and entanglement of photons?
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230301==== ====20230301====
 +<WRAP prewrap>
 <code> <code>
 11:26:14 From Steve Isenberg to Everyone: 11:26:14 From Steve Isenberg to Everyone:
Line 721: Line 909:
  https://www.youtube.com/playlist?list=PLROBLlvnR7BEF9b1NOvRf_zhboibmywJb  https://www.youtube.com/playlist?list=PLROBLlvnR7BEF9b1NOvRf_zhboibmywJb
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230215==== ====20230215====
 +<WRAP prewrap>
 <code> <code>
 10:21:01 From Jerome Slate to Everyone: 10:21:01 From Jerome Slate to Everyone:
Line 762: Line 952:
  https://jaykmody.com/blog/gpt-from-scratch/  https://jaykmody.com/blog/gpt-from-scratch/
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230208==== ====20230208====
 +<WRAP prewrap>
 <code> <code>
 10:10:01 From tedpk to Everyone: 10:10:01 From tedpk to Everyone:
Line 795: Line 987:
  Was his George’s father named Noah?  Was his George’s father named Noah?
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
  
 ====20230201==== ====20230201====
 +<WRAP prewrap>
 <code> <code>
 10:08:03 From Barry Kort to Everyone: 10:08:03 From Barry Kort to Everyone:
Line 845: Line 1039:
  Old expression: "A fool and his money are soon parted."      Plus ca change, plus c'est la meme chose.  Old expression: "A fool and his money are soon parted."      Plus ca change, plus c'est la meme chose.
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230125==== ====20230125====
 +<WRAP prewrap>
 <code> <code>
 10:27:32 From Jerome Slate to Everyone: 10:27:32 From Jerome Slate to Everyone:
Line 866: Line 1062:
  can a "normal" image of the source be constructed from the rings?  can a "normal" image of the source be constructed from the rings?
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
 ====20230111==== ====20230111====
 +<WRAP prewrap>
 <code> <code>
 07:19:37 From tedpk to Everyone: 07:19:37 From tedpk to Everyone:
Line 911: Line 1109:
  Also, have you done anything with Rosalind Picard (Affective Computing) at the MIT Media Lab?  Also, have you done anything with Rosalind Picard (Affective Computing) at the MIT Media Lab?
 </code> </code>
 +</WRAP>
 [[lexingtoncomputergroup|return]] [[lexingtoncomputergroup|return]]
  
2023lctgmeetingchats.1698249709.txt.gz · Last modified: 2023.10.25 09:01 by Steve Isenberg