I do science, take photos, and give dating advice.
My links: https://linktr.ee/See_Elegance
Well done, however it's one of the more convoluted correct answers that I've seen.
I guess it works with the riddle as formulated, but the true solution has to use the actual switch function.
You are on a circular train, with carriages connecting so that they form a closed loop. There is a lightbulb in each carriage which is randomly set either on or off. You can find a switch to each lightbulb in the same carriage. You can only interact with switches and nothing else. You have infinite time, the train is not infinite but arbitrarily long. How do you determine, with 100% certainty, how many carriages are there in a loop?
Since you've mentioned you're also interested in non-romantic relationships, I (late 20s M) have been casual dating on Tinder for four years. I tend to select my matches based on how attractive they look to me. Most of my dates are students in humanities or arts, service workers, or working professionals in non-STEM fields such as hospitality or translation. Programmers, models and blue collar workers are rarer.
On the first date I typically start with FORD smalltalk topics (family, occupation, recreation, dreams). I discovered that this approach doesn't always need to be boring - I can ask my date about what would she do with a billion dollars, or tell her about the time my organoid kidneys got transformed into beating hearts during my PhD research. This prompt often leads my date to ask: "you're not going to steal my kidneys, are you?", to which I reply: "I'm the least likely person to do this - if I need some, I will just grow them in my lab".
After that we can transition into our topics of interest (that is, if we're not making out yet by this point). Last month I invited my match on a first date to a bar where I told her about Fermi Paradox, then about AI alignment, then I asked her whether she would take hypothetical anti-aging pills, then we kissed and went to a love hotel. Two months ago, on another first date my match spent 90 minutes trying to solve a simple logical riddle, then gave up and left. I didn't hear from her again.
Irrationality is one thing I found hard to deal with - for example when my date brings up astrology signs. At first I was very argumentative or tried to convince my date that she's wrong, but that tends to go poorly. Nowadays I simply switch the topic to my love of astronomy, or play a little prank on my date:
"What's your sign?"
"I don't remember"
"Well, what's your birth date?"
"It's in February"
she pulls out astrological sign table
"Well you're Pisces then"
"I'm pretty sure February 30th is not on your calendar"
The majority of my dates I only see once or twice, but some of them transformed into friendships or FWB-type relationships. Many of them live in other cities or abroad, but they call me up from time to time when they return to my city. We also keep contact through social media (Instagram).
I'm happy with my dating life and with people I meet - I just wish it was more frequent and less expensive. Almost all of my dates are nice and kind people, some of them can have interesting conversations or can point out my flaws and improve me. My dates also tend to drag me out of my comfort zone and give me a reason to try stuff I would never try for myself, like spontaneously flying to Amsterdam or going to a trampoline park. As for the deep discussion of rationalist-adjacent topics, I'm quite satisfied just talking about them online or with my IRL friends and coworkers.
As a photographer, I got excited at first by the inclusion of the word "visible", but I guess today is not my day. Is there any chance for me to participate in training ML models by collecting a dataset of photos? I'm in the process of relocating to Singapore, but getting a work visa takes a while so I have a lot of free time now.
"Everybody" is a very strong claim, since there needs to only be one person who didn't find it disappointing for the claim to be false. I am that person. I started off barely getting any matches, but after putting in effort in my photography, style, conversation and flirting I now have a happy casual dating lifestyle. I recommend other people to do the same.
Great post! A few months ago I realized that when playing League of Legends, I have a problem losing the sight of my character in chaotic 5v5 teamfights. At the same time, I never had this problem in a casual ARAM mode. It took me some time to realize that in ARAM my camera was fixed on the character, while the regular mode had it floating free. Nowadays when the teamfight is coming, I lock my camera on my character so I can play the game like it's Hades.