Re: good post on LinkedIn

From	Bill Sloman <bill.sloman@ieee.org>
Newsgroups	sci.electronics.design
Subject	Re: good post on LinkedIn
Date	2026-01-31 16:25 +1100
Organization	A noiseless patient Spider
Message-ID	<10lk3oo$2kic9$6@dont-email.me> (permalink)
References	(7 earlier) <1rpr404.iw4vr1dacqtvN%liz@poppyrecords.invalid.invalid> <10lii4e$26717$1@dont-email.me> <30lpnkp9erjgkk0hr8lrbt3kjikbhjnqnn@4ax.com> <10linik$28gp2$1@dont-email.me> <2v9qnkh3kdj1b0seonq6g1vsduq2i94ra9@4ax.com>

Show all headers | View raw

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.

I once set up a system that prevented the system from latching the 
outputs until a 4usec retriggerable monostable triggered by an incoming 
count had timed out. It was useful in the application, but I didn't like it.

-- 
Bill Sloman, Sydney

Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

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

csiph-web