G-J van Rooyen
@gvrooyen.com
Director: Engineering & Innovation @ http://octoco.ltd. Associate Professor Extra-Ordinary in Industrial Engineering @ Stellenbosch University.
programming languages · trail running · innovation management · startups · good wine · business · reading
programming languages · trail running · innovation management · startups · good wine · business · reading
Reposted by G-J van Rooyen
Look folks gen AI videos are out in the wild so if you weren't already being careful about sharing rage bait videos then now is a great time to start
If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street
If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street
November 2, 2025 at 9:02 PM
Look folks gen AI videos are out in the wild so if you weren't already being careful about sharing rage bait videos then now is a great time to start
If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street
If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street
Reposted by G-J van Rooyen
Minor medical situation on the flight and it’s cool that my wife is able to jump up and help out when they ask for a licensed medical professional.
One day someone will need a regular expression so I stay ready.
One day someone will need a regular expression so I stay ready.
October 11, 2025 at 2:58 AM
Minor medical situation on the flight and it’s cool that my wife is able to jump up and help out when they ask for a licensed medical professional.
One day someone will need a regular expression so I stay ready.
One day someone will need a regular expression so I stay ready.
Reposted by G-J van Rooyen
RIP Jane Goodall, by all accounts a wonderful woman who loved this Far Side cartoon
October 1, 2025 at 6:09 PM
RIP Jane Goodall, by all accounts a wonderful woman who loved this Far Side cartoon
With the sad passing of Tom Lehrer, a flashback to the place where I heard one of his songs for the very 1st time more than three decades ago
July 28, 2025 at 8:30 AM
With the sad passing of Tom Lehrer, a flashback to the place where I heard one of his songs for the very 1st time more than three decades ago
Reposted by G-J van Rooyen
Had a vampire marathon this weekend with my son: Nosferatu (1922), Shadow of the Vampire (2000), Nosferatu (2024). Highly recommended watching order 🧛🏻
July 7, 2025 at 6:08 AM
Had a vampire marathon this weekend with my son: Nosferatu (1922), Shadow of the Vampire (2000), Nosferatu (2024). Highly recommended watching order 🧛🏻
Reposted by G-J van Rooyen
have been confused for days about insane cats invading our yard and destroying the plants for no reason only to find out I have accidentally planted fucking catnip all over the place, I am this neighborhoods feline drug lord, ive devasted their society
June 27, 2025 at 7:07 AM
have been confused for days about insane cats invading our yard and destroying the plants for no reason only to find out I have accidentally planted fucking catnip all over the place, I am this neighborhoods feline drug lord, ive devasted their society
Rereading an old fantasy novel from my youth. The protagonist names are all bouba; the villains outlandishly kiki
June 21, 2025 at 6:47 PM
Rereading an old fantasy novel from my youth. The protagonist names are all bouba; the villains outlandishly kiki
Reposted by G-J van Rooyen
Website for bank, insurance, airline, or buying tickets of any kind: Did you get that code I sent you
Me: Yeah, here you go
Website: Sweet, you're logged in
Me: Great is it cool if I go to the bathroom
Website: Yeah bro of course
Me: And you're not gonna log me out right
Website: Who is this
Me: Yeah, here you go
Website: Sweet, you're logged in
Me: Great is it cool if I go to the bathroom
Website: Yeah bro of course
Me: And you're not gonna log me out right
Website: Who is this
May 31, 2025 at 11:22 PM
Website for bank, insurance, airline, or buying tickets of any kind: Did you get that code I sent you
Me: Yeah, here you go
Website: Sweet, you're logged in
Me: Great is it cool if I go to the bathroom
Website: Yeah bro of course
Me: And you're not gonna log me out right
Website: Who is this
Me: Yeah, here you go
Website: Sweet, you're logged in
Me: Great is it cool if I go to the bathroom
Website: Yeah bro of course
Me: And you're not gonna log me out right
Website: Who is this
Ek steel hierdie en maak dit "net hoed, geen stoet"
Small personal update:
Heard the idiom “all hat, no cattle” for the first time today and, starting now, I’m going to try to use it as much as possible.
Heard the idiom “all hat, no cattle” for the first time today and, starting now, I’m going to try to use it as much as possible.
May 28, 2025 at 4:33 PM
Ek steel hierdie en maak dit "net hoed, geen stoet"
Love using plain chat as a scratchpad where I can back-and-forth with the AI until I get what I need (I've been desperate to turn my bank's old email statements into flexible machine-readable data for DECADES) and then just ask for a prompt that I can use in future or pass along to an agent
May 25, 2025 at 5:26 PM
Love using plain chat as a scratchpad where I can back-and-forth with the AI until I get what I need (I've been desperate to turn my bank's old email statements into flexible machine-readable data for DECADES) and then just ask for a prompt that I can use in future or pass along to an agent
Reposted by G-J van Rooyen
The word “login” comes from throwing a log attached to a rope with knots overboard a ship to see how many knots go by over time (see also, knots as speed). You’d then put that info in the “log book.” You’d “log in” on a regular basis. This wasn’t from 1959, it was likely from 1689! Etymology baby!
May 17, 2025 at 7:46 AM
The word “login” comes from throwing a log attached to a rope with knots overboard a ship to see how many knots go by over time (see also, knots as speed). You’d then put that info in the “log book.” You’d “log in” on a regular basis. This wasn’t from 1959, it was likely from 1689! Etymology baby!
This feels right out of Snow Crash. Read the wrong text and you might catch a serious mind-altering (or -destroying) neuro-linguistic virus.
(It's thrilling! Like a new frontier still waiting to be tamed)
(It's thrilling! Like a new frontier still waiting to be tamed)
May 14, 2025 at 6:33 PM
This feels right out of Snow Crash. Read the wrong text and you might catch a serious mind-altering (or -destroying) neuro-linguistic virus.
(It's thrilling! Like a new frontier still waiting to be tamed)
(It's thrilling! Like a new frontier still waiting to be tamed)
I'm unsure why Putin is looking so pissed about this
Gérard Depardieu given 18-month suspended sentence after being found guilty of sexual assault of two women – Europe live
Gérard Depardieu given 18-month suspended sentence after being found guilty of sexual assault of two women – Europe live
France’s biggest film star convicted of sexual assault over actions during film shoot in 2021
Gérard Depardieu has been found guilty of sexually assaulting two women during a film shoot in 2021.
Depardieu, France’s biggest film star, who has made more than 200 films and TV series, is the highest-profile figure in the French film industry to be convicted of sexual assault since the #MeToo movement. Continue reading...
www.theguardian.com
May 13, 2025 at 9:18 AM
I'm unsure why Putin is looking so pissed about this
Reposted by G-J van Rooyen
NEW POST
Even experienced developers fumble around when working with a new platform. Unmesh Joshi shows how using an LLM helped him learn how to use an unfamiliar toolset.
martinfowler.com/articles/exp...
Even experienced developers fumble around when working with a new platform. Unmesh Joshi shows how using an LLM helped him learn how to use an unfamiliar toolset.
martinfowler.com/articles/exp...
Building TMT Mirror Visualization with LLM: A Step-by-Step Journey
Notes from my Thoughtworks colleagues on AI-assisted software delivery
martinfowler.com
April 30, 2025 at 2:00 PM
NEW POST
Even experienced developers fumble around when working with a new platform. Unmesh Joshi shows how using an LLM helped him learn how to use an unfamiliar toolset.
martinfowler.com/articles/exp...
Even experienced developers fumble around when working with a new platform. Unmesh Joshi shows how using an LLM helped him learn how to use an unfamiliar toolset.
martinfowler.com/articles/exp...
Reposted by G-J van Rooyen
I’ve never had someone take a honk as a conversation starter before but there we are
April 25, 2025 at 6:15 PM
I’ve never had someone take a honk as a conversation starter before but there we are
Reposted by G-J van Rooyen
Guy nearly hit me in traffic, so I honked at him.
Next stop light, he pulls up next to me and rolls down his window.
“You got somethin’ to say to me?!”
“Yeah, I think you’re a shitty driver. That’s what the honk was for.”
Next stop light, he pulls up next to me and rolls down his window.
“You got somethin’ to say to me?!”
“Yeah, I think you’re a shitty driver. That’s what the honk was for.”
April 25, 2025 at 6:14 PM
Guy nearly hit me in traffic, so I honked at him.
Next stop light, he pulls up next to me and rolls down his window.
“You got somethin’ to say to me?!”
“Yeah, I think you’re a shitty driver. That’s what the honk was for.”
Next stop light, he pulls up next to me and rolls down his window.
“You got somethin’ to say to me?!”
“Yeah, I think you’re a shitty driver. That’s what the honk was for.”
Oblivion Remastered looks absolutely BEAUTIFUL. Can still vividly remember the anticipation 20 years ago, and the live reveal brings back all those feels
April 22, 2025 at 3:11 PM
Oblivion Remastered looks absolutely BEAUTIFUL. Can still vividly remember the anticipation 20 years ago, and the live reveal brings back all those feels
This court order is literature
‘Shocking to the sense of liberty Americans hold dear’: the impassioned US court order in the Ábrego García case
‘Shocking to the sense of liberty Americans hold dear’: the impassioned US court order in the Ábrego García case
Judges issued a memorable call for the return of Kilmar Ábrego García and the separation of government powers. Here is the text
www.theguardian.com
April 19, 2025 at 1:49 PM
This court order is literature
Reposted by G-J van Rooyen
An astronomy professor colleague of mine once relayed trying to explain to his students why it was important that they actually write their class reports themselves. “The point is not to teach ME about neutron stars,” he said.
Even accepting the premise that AI produces useful writing (which no one should), using AI in education is like using a forklift at the gym. The weights do not actually need to be moved from place to place. That is not the work. The work is what happens within you.
April 15, 2025 at 12:18 PM
An astronomy professor colleague of mine once relayed trying to explain to his students why it was important that they actually write their class reports themselves. “The point is not to teach ME about neutron stars,” he said.
Reposted by G-J van Rooyen
Biggest commitment to a 3 second joke I've ever seen
April 9, 2025 at 6:33 AM
Biggest commitment to a 3 second joke I've ever seen
Why vim uses hjkl for movement, ESC to change modes, and why ~ represents the home directory in Unix. It's all thanks to the beautiful ADM-3A terminal that was born in the same year as me!
catonmat.net/why-vim-uses...
#retrocomputing #vim #neovim
catonmat.net/why-vim-uses...
#retrocomputing #vim #neovim
Here is why vim uses hjkl keys as arrow keys
I was reading about vim the other day and found out why it used `hjkl` keys as arrow keys. When Bill Joy created the vi text editor he used the ADM-3A terminal, which had the arrows on hjkl keys. Natu...
catonmat.net
April 9, 2025 at 8:27 AM
Why vim uses hjkl for movement, ESC to change modes, and why ~ represents the home directory in Unix. It's all thanks to the beautiful ADM-3A terminal that was born in the same year as me!
catonmat.net/why-vim-uses...
#retrocomputing #vim #neovim
catonmat.net/why-vim-uses...
#retrocomputing #vim #neovim
This is terrible. The 50% (!!) US trade tariff on Lesotho, who mainly manufactures jeans for brands like Levi's and Calvin Klein, risks wiping out half of their exports.
www.news24.com/fin24/econom...
www.news24.com/fin24/econom...
Baffled Lesotho seeks to engage with US on jeans tariffs | Business
Lesotho scrambled to put together a delegation on Friday to head to Washington to engage with the US on tariffs that risk wiping out nearly half of its exports, its trade minister said, in what could ...
www.news24.com
April 5, 2025 at 12:47 PM
This is terrible. The 50% (!!) US trade tariff on Lesotho, who mainly manufactures jeans for brands like Levi's and Calvin Klein, risks wiping out half of their exports.
www.news24.com/fin24/econom...
www.news24.com/fin24/econom...
Reposted by G-J van Rooyen
Reposted by G-J van Rooyen
The Frog and the Scorpion From a Rational Point of View
existentialcomics.com/comic/596
existentialcomics.com/comic/596
March 31, 2025 at 4:35 PM
The Frog and the Scorpion From a Rational Point of View
existentialcomics.com/comic/596
existentialcomics.com/comic/596