Rupert Walker
@rupwalker
Soldier. Part-time investor, robotics engineer, and pilot. ex @goldmansachs
Usual Saturday evening work Allowing smooth, simultaneous control of the arm and drivetrain.
There's only one diagnosis left for understanding this country
POV one of Silicon Valley's leading entrepreneurs has explained why your country is doomed
Today I learned that in 1944, the UK had a working population of 24m against a total of 48m, and today has a working population of 28m against a total of 69m. In the 80 intervening years, worker productivity growth has exceeded 2% per year, on average, for a total of over 5x.…
How do I achieve success? "I wish upon you ample doses of pain and suffering"
Ship building is the most extreme example of a change in US/China industrial capacity. In WW2, the US built the same tonnage of ships every 18 days as China did in all of 1845-1945. Now, China has 200x the capacity of the US. Built 972 commercial ships in 2023 vs the US's 7.
Another Swedish tech darling Worth remembering that Sweden - called socialist by both its admirers and critics - has twice as many billionaires per capita as the US
Lovable becomes a unicorn with $200M Series A just 8 months after launch | TechCrunch techcrunch.com/2025/07/17/lov…
POV you're about to land a plane at the biggest military airbase in Europe
God created English summers so there could be paradise on earth
O'Leary is awesome. Top tier businessman and provocateur. Apologizes to no one
Ivan Yates: Do you have any sympathy for the residents? Michael O'Leary: Absolutely none. ✈️ The Ryanair CEO sounds off on noise complaints from residents in the environs of Dublin Airport.
I think Zuck is a genius businessman but this is just embarrassing
A hugely underrated skill Elon has is avoiding heavy equity dilution in his capital intensive businesses. Musk still owns 42% SpaceX, and 13% of Tesla. Meanwhile Uber, Groupon, Twitter, Spotify, and Slack founders all had <10% at IPO.
One of the most important cities in the world A capital city of ~9m National net immigration at 1m/yr And you're building... 4000 homes/yr
The Government says London needs to build 88,000 homes a year. Last year, it started 3,990. My column today is on the urgent national crisis no one is talking about - the collapse of housebuilding in London (1/?)
John D. Rockefeller, the wealthiest man in history, tells a story from his impoverished childhood. He looked so dishevelled that he was asked to get out his class photo. "I clenched my fists in my heart and swore to myself: one day you will become the richest man in the world!"
You will not hear of ARIA or Ilan Gur in the news very often. As all the usual pessimism cycles through the headlines, remember there are the world's best scientists day and night building technologies of the future, here 🇬🇧
