Peter Staadecker's Blog – Peter's Books, Photography and Miscellaneous Musings

December 14, 2025January 17, 2026

In Search of Mr. Beta

Part 1. Mr. Beta

Calculating beta with Yahoo’s monthly 5-year adjusted price history

Right. Warnings first. This is the most geekish post I’ve ever placed here. If you’re not into stocks, ETFs and weird things like “beta”, “Sortino ratios” and “up-market captures,” or how many angels dance on the head of a pin, skip this one. It’s not as entertaining as my writing posts, or my stories of Johnny Depp or the story of the Philosophers’ Party or the Cat Who Ate Only Chicken. Not even close. And if you think it’s investment advice, it’s not. It’s purely my musings on some nerdish stuff that might, at best, amuse other nerds.

With that out the way, let’s start.

June 22, 2025June 22, 2025

The Baron Sketches

In 2024 I was experimenting with Dall.E.3 which is an AI image generator. I fed it some random image descriptions and it churned some interesting images in reply.

Now, my brain likes to fit words and stories to images, so the naked images nagged at me.

January 27, 2025March 16, 2025

The Great Writing Challenge: Daphne vs. Peter

Daphne Cooper is a long-time friend, dating back to our days at the University of Cape Town Mountain and Ski Club. She is also an accomplished fellow writer. Seven or eight years ago she challenged me to a private writing contest. It’s been going on ever since.

This is how the challenge works:

July 18, 2024April 16, 2025

The Strangest Tale: Trim and the Map of Australia

This sculpture, by Mark Richards, now stands in Euston Station, London UK. There are similar statues in Australia: Sydney, Port Lincoln and Adelaide; and again in the UK in Lincolnshire. Photographer not known to me.

Today I want to plug someone else’s book – a marvelous little book that’s about 225 years old. I stumbled on it by chance, I don’t even know how anymore. It’s my favourite read of 2024 so far, and I’m overwhelmed by the story and the charm of it all.

December 13, 2023March 10, 2025

The Philosopher’s Bicycle

“Then he simply ceased pedalling. The bicycle’s momentum carried it forward a while but—as bicycles will—the machine began to waver from side to side ever more precariously.“

I was talking to my fellow author, Daphne C., and the conversation spiralled around to our student days together. That eventually led me to trot out two stories that a philosophy student—let’s call her “Helen”—told me at the time.

Helen’s first story concerned a philosophers’ party.

Right off the bat, this had my attention as an oddball story, because philosophers, giant turtles and three-toed sloths are one of type IMO – not party animals.

Nevertheless, Helen insisted there had been a philosophers’ party which she was part of. At the end of the evening, her prof left the party on his bicycle. It was a balmy Cape summer evening, so the remaining partygoers clustered on the porch to wave the prof goodbye and watch him pedal away.