Reply by Bill Sloman March 15, 20202020-03-15
On Monday, March 16, 2020 at 1:31:37 AM UTC+11, Phil Allison wrote:
> whit3rd puked all over the shop:
<snip>
> > fast action causes death of > > innocents in police shootings, and the MH-17"accident" four years ago, and of course the Iranian shoot-down of a Ukrainian aircraft a couple of months ago. > > ** Huh ? You drunk or on mind expanding drugs ?
Someone in Iran made a quick decision to shoot down that Ukranian aircraft. It probably felt intuitively correct at the time, but it didn't turn out to have been a wise choice.
> > This, I think, refutes the 'keeps people alive' claim as regards intuition. > > ** My god you fucking are ! > > Cannot be plain senile, like old fart Bill.
Nor completely out of his mind like Phil Alison, who can't follow logical reasoning.
> Wot fucking idiot post you just made.
Nowhere near as stupid as this one from Phil, which ranks as totally cretinous. -- Bill Sloman, Sydney
Reply by March 15, 20202020-03-15
whit3rd <whit3rd@gmail.com> wrote in
news:87fb2901-2b63-48a2-ba13-aff8904e467e@googlegroups.com: 

> > --- getting to a quick conclusion and acting confused if asked > 'why do you say that' is an intuition scenario. Doesn't that > sound like shortcut thinking? And, 'female intuition'? >
I have a practice regimen where I come to the table, spot my shot and cue ball roll outcome and take the shot in five seconds or less with no practice strokes. I stomp round the table, never "eyeing up a shot" and finish entire racks in less than 2 minutes, banking several balls in the process. Just like the Harlem Globe Trotters can toss a shot into the hoop with great ease. I feel that practicing in this way increases shot confidence, improves on the ganut of shots I opt to take, and learning cool new stuff when something less than fully expected happens. I call it "The Harlem Globe Trotter Effect". There is no way that we should be able to hit a spot on a ball with another ball to within 2 degrees of the proper spot for the shot so consistently with the target 10 feet away from you. The fact that we can do such things is pretty wild in my view. So, experience rules, because that is how a person like me can shoot bank shots like candy and drop jaws around the room. I have done it for so long that I simply KNOW how to shoot most shots. That and super wide pocket openings means that I also KNOW what my odds are for playing loosely with a shot. I think I am pretty good. But when one watches a video of a master like O'Sullivan shoot off on a 12 foot snooker table and run the rack with 2" balls, one knows that one is not so good. That guy is GOOD at it. So is Efren Reyes.
Reply by Phil Allison March 15, 20202020-03-15
whit3rd puked all over the shop:

----------------------------
Phil Allison wrote:
<>
> > > > Intuitions is just "fast thinking", > > > > ** Completely wrong. > > > > Eg How about "female intuition" ?? > > > --- getting to a quick conclusion and acting confused if asked 'why do you say that' is an intuition scenario.
** But only one of them.
> Doesn't that sound like shortcut thinking?
** Exactly what people do all day long, when there is no time to do anything else.
> And, 'female intuition'?
** Claimed to be a special kind of insight possessed by women. Never heard of it ?
> > > > ** Turning everyday experience into predictions is what keeps people alive. > > Not if you can't also carefully consider (or reconsider); >
** No what I meant. More like what you do when crossing a street full of traffic.
> fast action causes death of > innocents in police shootings, and the MH-17"accident" four years ago, and of course the Iranian shoot-down of a Ukrainian aircraft a couple of months ago.
** Huh ? You drunk or on mind expanding drugs ?
> This, I think, refutes the 'keeps people alive' claim as regards intuition.
** My god you fucking are ! Cannot be plain senile, like old fart Bill. Wot fucking idiot post you just made.. ... Phil
Reply by whit3rd March 15, 20202020-03-15
On Thursday, March 12, 2020 at 5:16:43 AM UTC-7, Phil Allison wrote:
> Bill Sloman wrote:
[about " Everybody has intuition."]
> > Intuitions is just "fast thinking", > > ** Completely wrong. > > Eg How about "female intuition" ??
--- getting to a quick conclusion and acting confused if asked 'why do you say that' is an intuition scenario. Doesn't that sound like shortcut thinking? And, 'female intuition'?
> > Pretentious twits want to dress it up as some kind of divine inspiration, but it's just the built-in system we've got for turning experience into predictions. > > > ** Turning everyday experience into predictions is what keeps people alive.
Not if you can't also carefully consider (or reconsider); fast action causes death of innocents in police shootings, and the MH-17"accident" four years ago, and of course the Iranian shoot-down of a Ukrainian aircraft a couple of months ago. This, I think, refutes the 'keeps people alive' claim as regards intuition. The natural, built-in system is a TERRIBLE replacement for a variety of formal procedures that keep us alive. Chernobyl didn't seem intuitively risky to the folk on the ground, until after the little explosion.
Reply by March 14, 20202020-03-14
On Saturday, March 14, 2020 at 12:24:56 PM UTC-4, George Herold wrote:
> On Friday, March 13, 2020 at 10:06:12 PM UTC-4, dagmarg...@yahoo.com wrote: > > On Thursday, March 12, 2020 at 11:24:10 AM UTC-4, George Herold wrote: > > > On Wednesday, March 11, 2020 at 3:21:36 PM UTC-4, dagmarg...@yahoo.com wrote: > > > > > > Bessemer's motivation? Possibly profit. He made some astute business > > > > maneuvers suggesting so. And the innovation and the cheap steel that > > > > resulted certainly wouldn't have happened in a socialist country, > > > > without that profit motive. (And think of the loss to humanity, > > > > think of the world today without cheap steel...) > > > > > > > > But personally, like some of us, I think Bessemer did it because > > > > he was having a blast. > > > > > > Hi James, I agree. Oh I put an asterisk on sailing, cause I > > > was recently looking at Kai Lenny and his hydrofoil surfboards. > > > Again I assume he's doing it for fun and not profit. > > > (though life is great when profit can follow your fun :^) > > > https://www.youtube.com/watch?v=px88XsARHwc > > > (one of many videos) > > > > > > George H. > > > > Thanks George, that was awesome. I'm forwarding that YouTube > > psychically to my dear brother Jeffrey, surfing fanatic, presently > > hunting the perfect wave somewhere in Alpha Centauri or beyond. > > > > Cheers, > > James Arthur > > Oh I knew nothing about it till listening to an E. Weinstein > podcast with Kai Lenny. > https://www.stitcher.com/podcast/kast-media-2/the-portal-2/e/67684598 > > They are still finding these big waves all over the globe... > One off the coast of Portugal. > He might like the podcast. > > George H.
He might well but I'm afraid Jeffrey's out of podcast range, having traded this earthly dominion for other worlds this past Dec. 3rd, 2016. Sorely missed. With best regards, James
Reply by George Herold March 14, 20202020-03-14
On Friday, March 13, 2020 at 10:06:12 PM UTC-4, dagmarg...@yahoo.com wrote:
> On Thursday, March 12, 2020 at 11:24:10 AM UTC-4, George Herold wrote: > > On Wednesday, March 11, 2020 at 3:21:36 PM UTC-4, dagmarg...@yahoo.com wrote: > > > > Bessemer's motivation? Possibly profit. He made some astute business > > > maneuvers suggesting so. And the innovation and the cheap steel that > > > resulted certainly wouldn't have happened in a socialist country, > > > without that profit motive. (And think of the loss to humanity, > > > think of the world today without cheap steel...) > > > > > > But personally, like some of us, I think Bessemer did it because > > > he was having a blast. > > > > Hi James, I agree. Oh I put an asterisk on sailing, cause I > > was recently looking at Kai Lenny and his hydrofoil surfboards. > > Again I assume he's doing it for fun and not profit. > > (though life is great when profit can follow your fun :^) > > https://www.youtube.com/watch?v=px88XsARHwc > > (one of many videos) > > > > George H. > > Thanks George, that was awesome. I'm forwarding that YouTube > psychically to my dear brother Jeffrey, surfing fanatic, presently > hunting the perfect wave somewhere in Alpha Centauri or beyond. > > Cheers, > James Arthur
Oh I knew nothing about it till listening to an E. Weinstein podcast with Kai Lenny. https://www.stitcher.com/podcast/kast-media-2/the-portal-2/e/67684598 They are still finding these big waves all over the globe... One off the coast of Portugal. He might like the podcast. George H.
Reply by March 13, 20202020-03-13
On Thursday, March 12, 2020 at 11:24:10 AM UTC-4, George Herold wrote:
> On Wednesday, March 11, 2020 at 3:21:36 PM UTC-4, dagmarg...@yahoo.com wrote:
> > Bessemer's motivation? Possibly profit. He made some astute business > > maneuvers suggesting so. And the innovation and the cheap steel that > > resulted certainly wouldn't have happened in a socialist country, > > without that profit motive. (And think of the loss to humanity, > > think of the world today without cheap steel...) > > > > But personally, like some of us, I think Bessemer did it because > > he was having a blast. > > Hi James, I agree. Oh I put an asterisk on sailing, cause I > was recently looking at Kai Lenny and his hydrofoil surfboards. > Again I assume he's doing it for fun and not profit. > (though life is great when profit can follow your fun :^) > https://www.youtube.com/watch?v=px88XsARHwc > (one of many videos) > > George H.
Thanks George, that was awesome. I'm forwarding that YouTube psychically to my dear brother Jeffrey, surfing fanatic, presently hunting the perfect wave somewhere in Alpha Centauri or beyond. Cheers, James Arthur
Reply by Bill Sloman March 12, 20202020-03-12
On Friday, March 13, 2020 at 3:03:31 AM UTC+11, jla...@highlandsniptechnology.com wrote:
> On Thu, 12 Mar 2020 08:28:52 -0700 (PDT), George Herold > <ggherold@gmail.com> wrote: > > >On Wednesday, March 11, 2020 at 3:38:28 PM UTC-4, John Larkin wrote: > >> On Wed, 11 Mar 2020 00:45:47 -0700 (PDT), buecherk@gmail.com wrote: > >> > >> > > >> >> Engineering involves thinking about what you are doing. If you rely only on intuition you are an artist, not an engineer. > >> > > >> >No. No good efficient engineering without intuition. > >> > > >> >There are 37 possible solutions to my problem. I could try them one by one and finish in 2027. I could simulate for hours, do analysis and calculations, to determine where to start. > >> > >> There might be 1e7 solutions to your problem. You can't simulate them > >> all. You can sleep on it and let your brain evaluate the 1e7 solutions > >> and pick a few good ones to simulate. > > > >Yeah I think that is sorta my picture... as I sleep my brain if > >fiddling with different possible solutions. > > You have trillions of brain cells that can work in parallel, each one > probably a pretty good quantum computer on its own.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776484/ Suzana Herculano-Houzel says that it's only 86 billion. Roger Penrose has claimed that neurones are quantum computers, but nobody takes him seriously - they are bit warm for any quantum state to last long enough to be useful.
> You can explore the solution space faster that all the supercomputers on the planet, in your sleep.
Or so John Larkin imagines.If his brain was that good he'd be less of a sucker for climate change denial propaganda.
> >Have you read "Thinking Fast and Slow" by D. Kahneman. I'm only ~1/2 way > >through but enjoying it. > > No. Is it good? I'm just about to start "The Night Witches" by Myles.
It was a best-seller, and Kahneman shared a Nobel Prize for the work it popularises. The work was observational science, so John Larkin won't take it seriously. -- Bill Sloman, Sydney
Reply by March 12, 20202020-03-12
Rick C <gnuarm.deletethisbit@gmail.com> wrote in
news:d899f1a7-855a-49bf-b740-8a4b11b8759b@googlegroups.com: 

> On Thursday, March 12, 2020 at 2:07:15 PM UTC-4, George Herold > wrote: >> On Thursday, March 12, 2020 at 1:07:54 PM UTC-4, >> DecadentLinux...@decaden > ce.org wrote: >> > George Herold <ggherold@gmail.com> wrote in >> > news:5cbef066-7ad7-413b-b75f-3cd800ed853d@googlegroups.com: >> > >> > > On Thursday, March 12, 2020 at 12:03:31 PM UTC-4, >> > > jla...@highlandsniptechnology.com wrote: >> > >> On Thu, 12 Mar 2020 08:28:52 -0700 (PDT), George Herold >> > >> <ggherold@gmail.com> wrote: >> > >> >> > >> >On Wednesday, March 11, 2020 at 3:38:28 PM UTC-4, John >> > >> >Larkin wrote: >> > >> >> On Wed, 11 Mar 2020 00:45:47 -0700 (PDT), >> > >> >> buecherk@gmail.com wrote: >> > >> >> >> > >> >> > >> > >> >> >> Engineering involves thinking about what you are >> > >> >> >> doing. If you rely only on intuition you are an >> > >> >> >> artist, not an engineer. >> > >> >> > >> > >> >> >No. No good efficient engineering without intuition. >> > >> >> > >> > >> >> >There are 37 possible solutions to my problem. I could >> > >> >> >try them one by one and finish in 2027. I could simulate >> > >> >> >for hours, do analysis and calculations, to determine >> > >> >> >where to start. >> > >> >> >> > >> >> There might be 1e7 solutions to your problem. You can't >> > >> >> simulate them all. You can sleep on it and let your brain >> > >> >> evaluate the 1e7 solutions and pick a few good ones to >> > >> >> simulate. >> > >> > >> > >> >Yeah I think that is sorta my picture... as I sleep my >> > >> >brain if fiddling with different possible solutions. >> > >> >> > >> You have trillions of brain cells that can work in parallel, >> > >> each one probably a pretty good quantum computer on its own. >> > >> You can explore the solution space faster that all the >> > >> supercomputers on the planet, in your sleep. >> > >> >> > >> > >> > >> >Have you read "Thinking Fast and Slow" by D. Kahneman. I'm >> > >> >only ~1/2 way through but enjoying it. >> > >> >> > >> No. Is it good? I'm just about to start "The Night Witches" >> > >> by Myles. >> > > It's interesting. But seems a bit repetitive at times. So >> > > far most of it is about how the fast (intuitive) part of our >> > > brain can be mislead. >> > > >> > > It's a bit of an interactive book with questions... and then >> > > I find he's treating me as not as smart as I am... or maybe >> > > it is that I enjoy thinking 'slow' about stuff. Anyway many >> > > useful and insightful ideas, so I would recommend it. >> > > >> > > George H. >> > >> >> > >> >> > >> >> > >> -- >> > >> >> > >> John Larkin Highland Technology, Inc >> > >> >> > >> The cork popped merrily, and Lord Peter rose to his feet. >> > >> "Bunter", he said, "I give you a toast. The triumph of >> > >> Instinct over Reason" >> > > >> > > >> > >> > People tell me I shoot too hard in pool. >> > >> > I always have said that I explore the fringes of the physics >> > of the > >> > shot. So I feel that anyone who does not explore those limits >> > does not learn the full gamut required to make them a good >> > shooter (and they have no business critiquing on it at that >> > point). I shoot super > >> > soft shots and I shoot shots where the ball literally flies to >> > the pocket in mid air. I shoot the fool gamut. There are >> > exactly zero practice strokes in my shots. My shots are >> > executed in uaually less than 10 seconds each. Don't turn your >> > back or you'll claim I cheated. I shoot banks more often than >> > my straight shots on some racks. Taking too long to shoot >> > contributes to loss of confidence. >> >> Oh, I think he (D. Kahneman) talks about this.. but maybe it was >> someone else. But for various athletes performing at >> their peak, they often report that the (slow) thinking part of >> the brain > is >> apart/detached from the whole process... like an outside >> observer... thinking too much ruins your game. >> >> George H. >> (I remember reading a tennis book in the ~70's that said the >> same thing.) > > It is well known that muscle coordination does not require > conscious thought. It happens through the nerve bundles (I forget > the term for them) in the spine. This is the basis of muscle > memory which is a real thing, only it doesn't literally happen in > the muscles. >
I call the fact that I can hit the exact 0.25 degree accuracy required shot traversing 11 feet of table to the EXACT spot it need to go to to be made... Each and every time... The Harlem Globe Trotter Effect. I give all credit to Jesus, because were it not for him, God would have tossed us into the lake of fire a couple millennia ago. So shooting hard or easy... I just stay calm, and shoot what I know, which is almost all of it. Then I watched those fuckers in Britain playing Snooooooker. Those silly bastards know how to roll the cue ball AFTER the shot.
Reply by John Larkin March 12, 20202020-03-12
On 11 Mar 2020 07:55:50 -0700, Winfield Hill <winfieldhill@yahoo.com>
wrote:

>jlarkin@highlandsniptechnology.com wrote... >> >>On 11 Mar 2020 06:28:32 -0700, Winfield Hill <winfieldhill@yahoo.com> >>wrote: >> >>>Bill Sloman wrote... >>>> >>>> There are other ways of predicting what a circuit will do, >>>> and you can - in principle - create you own Spice models of >>>> parts which better reflect what they do in the circumstances >>>> in which you wish to use them. >>> >>> I like to make small SPICE models of parts, derived from >>> analytical expressions of a few critical things that're >>> going on in the aspect of the circuit I'm evaluating. >>> >>> For example, consider an op-amp driving a power MOSFET to >>> create a controlled current source. The FET's high gate >>> capacitance, along with the bootstrapped source resistor, >>> creates a confusing control loop. My RIS-796, a 250-amp >>> LED pulser project, uses this. If you want, sets of files: >>> >>>https://www.dropbox.com/sh/tcmiahzzughadfk/AABtgFDy01cuTDWDRjujP6jva?dl=1 >>> >>> In AoE x-Chapter 4x.26, we struggled and derived a set of >>> analytical equations for this circuit. See article here. >>> >>>https://www.dropbox.com/s/o4g4mhzl70rsi9t/4x.26_MOSFET_CS_nodal- >analysis_final.pdf? >>>dl=1 >>> >>> The circuit basis for the equations uses the MOSFET's gm, >>> equation id = gm (vg-vs), and its gate capacitance, Ciss. >>> The equations are hairy. But we also suggest you can make >>> a simple SPICE circuit with the op-amp, the FET's id and >>> Ciss, plus additional Rs and Cs, to evaluate the circuit. >>> >>> Such a scheme may only works well over a limited range of >>> conditions, e.g., using the value for gm at the FET's 250A >>> current, means that the reduced-current startup won't be >>> accurately modeled. But it's still quick and useful. And >>> you can repeat the SPICE run, with lower values of gm, to >>> get an idea of what's happening during the pulse startup. >> >> Nearly all interesting systems are nonlinear, and analytic >> equations are hard or impossible for nonlinear systems. >> >> So the math becomes guidance, suggestions or starting >> points for simulation or experiment. > > In the case of an op-amp driving a FET, at low currents the > circuit will be slower, OK, but the pulse quickly moves past > that to the high current. So making sure the loop is stable > at high currents, and checking response is most of the game.
Lots of simple stuff, opamps and voltage dividers and filters, can be designed with math, and one can be confident that they will work. More interesting stuff, fast things and nonlinear things, need simulation and then physical verification. Device models can be awful, so neither math nor sims are predictive. People leave out wire bond inductance. Substrate diode models can be flat wrong. Thermal effects are hard to model. And sometimes a circuit on a PCB needs a full 3D em simulation. I'd rather solder. Here's my 20 volt pulse, 10V into 50 ohms. https://www.dropbox.com/s/aln3x5i3k30hhwm/T577C_20V_Filtered_3-12-2020.jpg?raw=1 This is rev C of my GaN pulser, and the last rev enabled a ton of soldering, fiddling, and filter testing to make a clean pulse. I think I finally got it right a half hour ago. I deserve a donut. Initial simulations were just a starting point, and not very accurate. -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com