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Introduction:

The other day, my regular interlocutors at our local shopping centre regaled me with a new question: "What is AI?" And that turned into a discussion about ChatGPT.

I had to confess that I'd never used it. So, I thought I would 'kill two birds with one stone' and ask ChatGPT, for material for an article for my website.

Since watching the movie Oppenheimer, reviewed elsewhere on this website, I've found myself, from time-to-time, musing about the development of the atomic bomb and it's profound impact on the modern world. 

Nuclear energy has provided a backdrop to my entire life. The first "atomic bombs" were dropped on Japan the month before I was born. Thus, the potential of nuclear energy was first revealed in an horrendous demonstration of mankind's greatest power since the harnessing of fire.

Very soon the atomic reactors, that had been necessary to accumulate sufficient plutonium for the first bombs, were adapted to peaceful use.  Yet, they forever carried the stigma of over a hundred thousand of innocent lives lost, many of them young children, at Hiroshima and Nagasaki.

The fear of world devastation followed, as the US and USSR faced-off with ever more powerful weapons of mass destruction.

The stigma and fear has been unfortunate, because, had we more enthusiastically embraced our new scientific knowledge and capabilities to harness this alternative to fire, the threat to the atmosphere now posed by an orgy of burning might have been mitigated.

Method:

So, for this article on the 'atomic bomb', I asked ChatGPT six questions about:

  1. The Manhattan Project; 
  2. Leo Szilard (the father of the nuclear chain reaction);
  3. Tube Alloys (the British bomb project);
  4. the Hanford site (plutonium production);
  5. uranium enrichment (diffusion and centrifugal); and
  6. the Soviet bomb project.

As ChatGPT takes around 20 seconds to write 1000 words and gives a remarkably different result each time, I asked it each question several times and chose selectively from the results.

This is what ChatGPT told me about 'the bomb':

 

ChatGPT created all that follows, selectively edited by me but otherwise unchanged, except for my comments (as marked in blue). 

(note that it occasionally uses American spelling and likes to say "However," instead of "Yet," or "But"):

How IT (ChatGPT) does this is the subject of a separate article.

  

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Travel

Denmark

 

 

  

 

 

In the seventies I spent some time travelling around Denmark visiting geographically diverse relatives but in a couple of days there was no time to repeat that, so this was to be a quick trip to two places that I remembered as standing out in 1970's: Copenhagen and Roskilde.

An increasing number of Danes are my progressively distant cousins by virtue of my great aunt marrying a Dane, thus contributing my mother's grandparent's DNA to the extended family in Denmark.  As a result, these Danes are my children's cousins too.

Denmark is a relatively small but wealthy country in which people share a common language and thus similar values, like an enthusiasm for subsidising wind power and shunning nuclear energy, except as an import from Germany, Sweden and France. 

They also like all things cultural and historical and to judge by the museums and cultural activities many take pride in the Danish Vikings who were amongst those who contributed to my aforementioned DNA, way back.  My Danish great uncle liked to listen to Geordies on the buses in Newcastle speaking Tyneside, as he discovered many words in common with Danish thanks to those Danes who had settled in the Tyne valley.

Nevertheless, compared to Australia or the US or even many other European countries, Denmark is remarkably monocultural. A social scientist I listened to last year made the point that the sense of community, that a single language and culture confers, creates a sense of extended family.  This allows the Scandinavian countries to maintain very generous social welfare, supported by some of the highest tax rates in the world, yet to be sufficiently productive and hence consumptive per capita, to maintain among the highest material standards of living in the world. 

Read more: Denmark

Fiction, Recollections & News

The U-2 Incident

 

 

 

In 1960 the Russians shot down an American U-2 spy plane that was overflying and photographing their military bases.  The U-2 Incident was big news when I was in High School and I remember it quite clearly. 

The Incident forms the background to Bridge of Spies a 2015 movie, directed by Steven Spielberg and starring Tom Hanks and Mark Rylance from a screenplay written by Matt Charman together with Ethan and Joel Coen that centres on these true events. 

Spielberg and the Cohen Brothers.  Who could miss it?

 

 

Read more: The U-2 Incident

Opinions and Philosophy

The race for a SARS-CoV-2 vaccine

 

 

 

 

As we all now know (unless we've been living under a rock) the only way of defeating a pandemic is to achieve 'herd immunity' for the community at large; while strictly quarantining the most vulnerable.

Herd immunity can be achieved by most people in a community catching a virus and suffering the consequences or by vaccination.

It's over two centuries since Edward Jenner used cowpox to 'vaccinate' (from 'vacca' - Latin for cow) against smallpox. Since then medical science has been developing ways to pre-warn our immune systems of potentially harmful viruses using 'vaccines'.

In the last fifty years herd immunity has successfully been achieved against many viruses using vaccination and the race is on to achieve the same against SARS-CoV-2 (Covid-19).

Developing; manufacturing; and distributing a vaccine is at the leading edge of our scientific capabilities and knowledge and is a highly skilled; technologically advanced; and expensive undertaking. Yet the rewards are potentially great, when the economic and societal consequences of the current pandemic are dire and governments around the world are desperate for a solution. 

So elite researchers on every continent have joined the race with 51 vaccines now in clinical trials on humans and at least 75 in preclinical trials on animals.

Read more: The race for a SARS-CoV-2 vaccine

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