Collin Sullivan
csullivan.bsky.social
Collin Sullivan
@csullivan.bsky.social
Political science PhD candidate at Michigan: human rights, state repression, atrocity prevention, complex systems. he/him. Go (Oakland) A's 💚💛
The algorithm has an excellent sense of humor
December 9, 2025 at 4:28 PM
Smells Like Teen Spirit: Youth Political Engagement and Issue Adoption in Official Party Platforms
August 13, 2025 at 2:35 PM
Lightning Crashes: Random Political Shocks and Volatility in Spanish Bond Yields
August 13, 2025 at 2:35 PM
You Oughtta Know: Prior Beliefs About Issue Knowledge and Negotiation Breakdown in the Paris Climate Talks
August 13, 2025 at 2:35 PM
Hold Me, Thrill Me, Kiss Me, Kill Me: Recruitment, Reward, and Removal in Small Coalition Political Systems
August 13, 2025 at 2:35 PM
More Than Words: Cheap Talk and Costly Signals in the Cuban Missile Crisis
August 13, 2025 at 2:35 PM
Jeez, I just saw that the US has bombed Iran and here I am arguing set theory with strangers on the Internet. Ugh. You can have the last word if you'd like. No disrespect and thanks for the conversation.
June 22, 2025 at 12:29 AM
So when you write that "BONOBO is in both sets A and B," well, it's not present in set B.

This is a union joke (thank a union comedian!)

☝️ That was also a union joke, but a bad one.
June 21, 2025 at 11:40 PM
In this case, you can make"bonobo" using elements from only set A, or using elements present in *either* set (union), but not elements present in both (intersection), which, again, are only b and o.
June 21, 2025 at 11:40 PM
That wouldn't make sense for the joke, so it does seem like it is saying, "if you mix Bono and oboe, you get bonobo(e)," which is true when you take the union of the two, but not the intersection (since n is required for bonobo, but only present in one of the component sets).
June 21, 2025 at 11:40 PM
This is a pretty silly argument to have, but, acknowledging that, if we assume 'elements of unordered sets,' you can spell "bonobo" using only elements in set A, so the bonobo image should just be the whole Bono circle. The overlap from set B would include the o and b, but not the e.
June 21, 2025 at 11:40 PM
I'm not quite sure how the intersection (which includes only elements that are present in both sets) could include "bonobo" when set B (oboe) has no "n". B and O are the only elements present in both sets. They are not sufficient to spell "bonobo."
June 21, 2025 at 11:40 PM
But... only the "o" is in *both* sets. ( Bon (o) boe )

Bonobo(e) is the union of the two, not the intersection.

A + B - (intersection of A and B) = Union

Bono + Oboe - o = Bonoboe

(Yes, yes, fun at parties, etc. etc.)
June 21, 2025 at 3:03 PM
Incidentally, Orwell described doublethink as, "to hold simultaneously two opinions which cancelled out, knowing them to be contradictory and believing in both of them... to forget whatever it was necessary to forget, then to draw it back into memory again at the moment when it was needed..."

2/2
May 1, 2025 at 4:59 PM
There is no substitute for carefully-gathered evidence of human rights abuses. Unfortunately that evidence is not sufficient for accountability and prevention. But it is *absolutely* necessary. We are losing a key resource, and it's up to us to replace it with something stable and robust.

10/10
April 18, 2025 at 4:13 PM
The best time to begin this work -- training on journalistic methods and ethics, learning open source investigative tools and techniques, asking people what happened to them and their families and writing it down -- was yesterday. The second best time is today.

9/n
April 18, 2025 at 4:13 PM