Rogier Swierstra
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rogierswierstra.bsky.social
Rogier Swierstra
@rogierswierstra.bsky.social
Having fun in math and finance. Lots of opinions, not many posts (EN & NL). Read my work at https://substack.com/@rogierswierstra
November 8, 2025 at 4:53 PM
Where this is heading
October 25, 2025 at 7:37 AM
Here's a Frick pic
October 11, 2025 at 9:49 AM
Chicago faculty meeting
October 1, 2025 at 11:05 AM
Delfstof van het beest!
September 8, 2025 at 8:10 AM
When in Dublin I made a day-trip out of a visit to Quaternion Bridge
September 3, 2025 at 2:21 PM
August 8, 2025 at 3:47 PM
Jeffrey Epstein also had great jeans
August 5, 2025 at 5:03 PM
We're rapidly approaching Stage 4
July 26, 2025 at 8:31 AM
July 12, 2025 at 4:36 PM
I think about this a lot
July 5, 2025 at 12:12 PM
Voor de anti-antisemitisme-strijders gaat er niet om WAT er gezegd wordt, maar WIE het zegt. Zie de "unfortunate gesture" van Elon Musk
July 4, 2025 at 10:07 AM
You might like @tomgauld.bsky.social
June 23, 2025 at 6:42 PM
June 5, 2025 at 6:27 AM
Uit de kop is niet duidelijk dat het gaat over ramingen voor de komende 2 jaar. Op de site ziet het er zo uit, de eerste kop zet je op het verkeerde been voor de tweede
May 1, 2025 at 5:18 AM
Verzekeraars doen het op alfabet

pensioenpro.nl/na-achmea-en...
April 18, 2025 at 7:27 AM
Where these lines meet
April 9, 2025 at 3:37 PM
Gezien?
March 19, 2025 at 12:32 PM
That would have made a fantastic caption

"Fat Man and Little Boy land in nerve centre of US Govt."
March 7, 2025 at 9:54 AM
Zelenskyy responds, and pointedly does not thank Довбойоб Vance
February 28, 2025 at 7:40 PM
Ok hoop zo dat deze berichten geen verband houden
February 12, 2025 at 4:12 PM
February 12, 2025 at 3:48 PM
As a Dutch pension-managing burgher I did recognize the image.

And for the avoidance of doubt -- Dutch burghers not being renownend for their subtlety -- I think the analysis itself is a fantastic piece of work. And it must have been quite a bit of work too:
February 12, 2025 at 12:28 PM
In Lille for the holidays and there's a monument for the 20K carrier pigeons who died in WWI, "monument aux pigeons voyageurs"

and the handlers executed for espionage
December 31, 2024 at 8:59 AM
"You'll be visited by three spirits"

The spirits, representing triangles in various geometries
December 24, 2024 at 1:27 PM