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Re: good post on LinkedIn

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On Sat, 31 Jan 2026 16:25:29 +1100, Bill Sloman <bill.sloman@ieee.org>
wrote:

>On 31/01/2026 8:53 am, john larkin wrote:
>> On Sat, 31 Jan 2026 03:51:16 +1100, Bill Sloman <bill.sloman@ieee.org>
>> wrote:
>> 
>>> On 31/01/2026 3:04 am, john larkin wrote:
>>>> On Sat, 31 Jan 2026 02:18:25 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>> wrote:
>>>>
>>>>> On 31/01/2026 12:43 am, Liz Tuddenham wrote:
>>>>>> Bill Sloman <bill.sloman@ieee.org> wrote:
>>>>>>
>>>>>>> On 30/01/2026 9:15 pm, Liz Tuddenham wrote:
>>>>>>>> Bill Sloman <bill.sloman@ieee.org> wrote:
>>>>>>>>
>>>>>>>> [...]
>>>>>>>>> The only electronics I did as a kid was to build a completely passive
>>>>>>>>> crystal set
>>>>>>>> [...]
>>>>>>>>
>>>>>>>> I think we may quote that in replies to some of your future posts.
>>>>>>>
>>>>>>> It didn't include any parts with gain, or any power source. What's your
>>>>>>> preferred description of the classic crystal set?
>>>>>>
>>>>>> The part that caught my eye was: " The only electronics I did as a kid".
>>>>>> Many of us spent our childhood teaching ourselves electronics - so we
>>>>>> may remind you of this difference next time you start making disparaging
>>>>>> remarks about other engineers' knowledge and abilities.
>>>>>
>>>>> John Larkin seems to think it gives you some kind of advantage.
>>>>
>>>> Of course it does. As there is a huge advantage to learning chess or
>>>> math or languages or soccer when you are young. Actually doing stuff
>>>> involves practical feedbacks and acquired instincts.
>>>
>>> Instincts are what you were born with. What you get from doing stuff is
>>> habits.
>>>
>>> Learning stuff too early can instill bad habits, and they are hard to
>>> unlearn.
>>>
>>> Languages aren't learned any faster if you learn them young, and some
>>> aspects of language can't be learned at all by very young kids.
>>>
>>>> University education seldom installs much in the way of instincts
>>>> either. It's too rigid and formalized, and too late.
>>>
>>> Since instincts are what you get with your genome, universities can't
>>> install them at all.
>>>
>>> Formal instruction at university is formal. It's mostly accompanied by
>>> practical classes, which are a lot less rigid.
>>>
>>> The complicated stuff that most people learn at university mostly can't
>>> be instilled into adolescents - some rare kids can learn it early, but
>>> they tend to be exceptionally clever and need exceptional power of
>>> concentration. About 30% of the undergraduate intake doesn't ever get
>>> any kid of degree, and probably shouldn't have started at all.
>>>
>>>>> If you taught yourself when you were a kid, you didn't have a
>>>>> well-qualified teacher.
>>>>
>>>> A mentor with instincts is great if you are lucky enough to have one.
>>>
>>> Instincts come from the genome. What good mentors have is experience,
>>> and some understanding of what that experience has taught them.
>>>
>>> Electronics has advanced a lot over the past fifty years, and mentors
>>> are correspondingly less useful as teachers.
>>>>> At least when I got into it, I did have a
>>>>> university library and book-shop to draw on and did get some advice from
>>>>> people who really knew what they were doing.
>>>>
>>>> Obviously too late.
>>>
>>> What's obvious to you is what you want to see. Trump is even more deeply
>>> into wishful thinking than you are.
>>>
>>>>> I learned a lot when I started doing electronic engineering as my main
>>>>> job, and had some really skilled teachers and examplars, as a well as
>>>>> lot of colleagues who merely thought that they knew what they were
>>>>> doing, and earned a few disparaging remarks. A few disparaging remarks
>>>>> got published as comments in the Review of Scientific Instruments.
>>>>
>>>> I sometimes read RSI when it's available. The circuits are hilarious.
>>>
>>> They tend to be functional, rather than elegant, and not always all that
>>> up-to-date. I once got very rude about a paper lauding the use of 1Ok
>>> ECL which got published after ECLinPs had been around for a few years.
>>>
>>> 10k ECL was about four times faster than TTL/CMOS, but ECinPS was four
>>> times faster again. The same paper described a ripple carry counter
>>> where the carry propagation wasn't fast enough to match the maximum
>>> count rate claimed. No mention at all of a synchronous counter.
>>>
>>> It was a particularly horrible example, quite the worst I've ever seen.
>> 
>> A true ripple counter is as fast as its first flop.
>
>Rubbish. The state of the outputs of a  multistage ripple counter isn't 
>useful until the increment has rippled through every stage.


Consider a frequency divider.

Your prime motivation is to contradict, not to think. That's very
common.

A true ripple counter is as fast as its first flop.


John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics

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Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-29 14:26 +0000
  Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-29 09:04 -0800
    Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-29 17:57 +0000
      Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-29 10:59 -0800
        Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-30 00:48 +0000
          Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-29 17:01 -0800
            Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-30 01:28 +0000
            Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-30 15:14 +1100
              Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 11:52 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 16:05 +1100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 12:34 +0000
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 07:29 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 20:59 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-02-01 03:06 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-02 00:17 +1100
                Re: Excel and accountants, good post on LinkedIn John Levine <johnl@taugh.com> - 2026-01-31 23:21 +0000
                Re: Excel and accountants, good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 16:22 -0800
                Re: Excel and accountants, good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-02-01 02:13 +0000
                Re: Excel and accountants, good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-31 19:31 -0700
                Re: Excel and accountants, good post on LinkedIn albert@spenarnc.xs4all.nl - 2026-02-01 21:58 +0100
                Re: Excel and accountants, good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-02-01 14:36 -0700
              Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 03:56 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 15:23 +1100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 14:36 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 21:31 +1100
        Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-30 14:59 +1100
          Re: good post on LinkedIn liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-30 10:15 +0000
            Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 00:06 +1100
              Re: good post on LinkedIn liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-30 13:43 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 02:18 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 08:04 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 03:51 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 09:46 -0800
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-30 20:00 +0000
                Re: good post on LinkedIn Jeroen Belleman <jeroen@nospam.please> - 2026-01-30 22:49 +0100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-30 22:52 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 16:02 +1100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 13:33 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 01:31 +1100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 19:16 +0000
                Re: history of Fortran, good post on LinkedIn John Levine <johnl@taugh.com> - 2026-01-31 23:10 +0000
                Sorry re history of Fortran, good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 23:25 +0000
                Re: Sorry re history of Fortran, good post on LinkedIn John Levine <johnl@taugh.com> - 2026-02-01 02:43 +0000
                Re: Sorry re history of Fortran, good post on LinkedIn OrangeFish <OrangeFish@invalid.invalid> - 2026-02-01 18:00 -0500
                Re: history of Fortran, good post on LinkedIn albert@spenarnc.xs4all.nl - 2026-02-01 22:11 +0100
                Re: history of Fortran, good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-02-01 14:42 -0700
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 21:36 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 15:53 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 16:14 +1100
                Re: good post on LinkedIn Jeroen Belleman <jeroen@nospam.please> - 2026-01-31 11:21 +0100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 07:34 -0800
                Re: good post on LinkedIn Jeroen Belleman <jeroen@nospam.please> - 2026-01-31 21:42 +0100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 13:36 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 21:57 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-02-01 03:10 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-02 00:37 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-02-01 07:36 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-03 16:27 +1100
                Re: good post on LinkedIn albert@spenarnc.xs4all.nl - 2026-02-01 22:21 +0100
                Re: good post on LinkedIn liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-31 09:00 +0000
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 15:45 +1100
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 14:26 +0000
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 13:53 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-01-31 16:25 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 07:41 -0800
                Re: good post on LinkedIn Gerhard Hoffmann <dk4xp@arcor.de> - 2026-01-31 17:33 +0100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 10:07 -0800
                Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-31 11:26 -0700
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-01 22:04 +1100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-02-01 07:38 -0800
                Re: good post on LinkedIn Bill Sloman <bill.sloman@ieee.org> - 2026-02-03 16:37 +1100
              Re: good post on LinkedIn Gerhard Hoffmann <dk4xp@arcor.de> - 2026-01-30 15:06 +0100
                Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 11:55 -0800
    Re: good post on LinkedIn wmartin <wwm@wwmartin.net> - 2026-01-30 11:27 -0800
      Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 18:54 -0800
      Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 23:26 -0700
        Re: good post on LinkedIn liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-01-31 09:22 +0000
          Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-31 02:50 -0700
  Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 04:36 -0700
    Re: good post on LinkedIn legg <legg@nospam.magma.ca> - 2026-01-30 09:24 -0500
      Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 09:56 -0700
        Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 10:05 -0700
        Re: good post on LinkedIn legg <legg@nospam.magma.ca> - 2026-01-30 14:22 -0500
          Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 19:09 -0700
            Re: good post on LinkedIn legg <legg@nospam.magma.ca> - 2026-01-30 22:16 -0500
              Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 22:27 -0700
          Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 03:40 +0000
            Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-30 22:46 -0700
              Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 15:20 +0000
                Re: good post on LinkedIn Don Y <blockedofcourse@foo.invalid> - 2026-01-31 08:44 -0700
                Re: good post on LinkedIn Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-31 17:13 +0000
            Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-31 07:55 -0800
    Re: good post on LinkedIn john larkin <jl@glen--canyon.com> - 2026-01-30 08:15 -0800

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