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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Shielding spacecraft against cosmic radiation
Date: Fri, 15 Mar 2024 15:55:01 +1100
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On 15/03/2024 2:13 am, John Larkin wrote:
> On Thu, 14 Mar 2024 06:13:43 GMT, Jan Panteltje <alien@comet.invalid> wrote:
>> On a sunny day (Wed, 13 Mar 2024 03:54:24 -0700) it happened John Larkin <jl@997PotHill.com> wrote in <ae13viptr1sskaqq1h2ru1j9i85sdecfrd@4ax.com>:
>>> On Wed, 13 Mar 2024 07:09:47 GMT, Jan Panteltje <alien@comet.invalid> wrote:
>>>> On a sunny day (Tue, 12 Mar 2024 14:18:18 -0700) it happened john larkin <jl@650pot.com> wrote in <34h1vihp32geb2olkcscfksbr8k0bdgdmu@4ax.com>:
>>>>> On Tue, 12 Mar 2024 06:22:55 GMT, Jan Panteltje <alien@comet.invalid> wrote:

<snip>

>> Makes you wonder if the first life on earth was brought here in a similar way
>> (circular reasoning).
> 
> Earth is too good to be an accident, and our life form is too complex
> to have evolved from inorganics. 

John Larkin is a gullible sucker for very kind of dim propaganda - here 
he is recycling a creationist trope, dealt with at length by Richard 
Dawkins in

https://en.wikipedia.org/wiki/The_Blind_Watchmaker

> Other civiizations in the universe have probably advanced for billions of years. 

It's possible, but there's a lot of universe out there.

> So it's likely that Earth and DNA-based life were designed, maybe as a high school science
> project. 


It's conceivable but unlikely. Even a high school science project today 
would know about error-detecting - and -correcting codes.

And life on earth seems to have started with RNA based replicators - not 
DNA.

If this sort of thing had gone on, we'd have been panspermia colonised 
by a better designed replicator.

In reality there are lots of different planets out there, and they 
probably all need different replicators to get the ball rolling.

> I give it a B-.

John Larkin hasn't got the credentials to be allowed to mark this kind 
of work.

-- 
Bill Sloman, Sydney