A social experiment · Tinder · Stoicism

Ave,
Marcus.

A 3D-printed bust of Marcus Aurelius made a dating profile and answered everyone with nothing but his own Meditations.

Summer 2020 — Spring 2021
270
conversations read from screenshots
749
messages exchanged, quotes and replies
40.4%
of conversations got a reply
116×
times the emperor opened with the same line
Chapter I · The premise

An emperor, a plague, and a swipe.

Soon you will have forgotten the world, and soon the world will have forgotten you. The line on his profile

Throughout his life tainted by responsibilities and adversities, Marcus Aurelius Antoninus, the emperor philosopher, carried a diary never meant to be seen by anyone but himself. Later known as the ‘Meditations’, this book became a cornerstone of stoicism, a philosophical school of Greek origin which was deeply entrenched in Roman society, had a role in the foundations of Christian morality and progressively lost relevance until today.

Often oversimplified as a mere detachment from emotions, stoicism is nowadays present in the public discourse hardly as anything more than trivia knowledge. Once understood as an overcompassing set of ethics, stoicism offered answers to the most irreductible questions of life, from telling good and evil apart to how to face up to death and live in harmony with nature. Marcus Aurelius, just as we humans of the 21st Century, also had to endure his fair share of angst product of an epidemic. The Antonine Plague of the second century A.D. was one of the elements that contextualized the writing of his Meditations, in which he reflects on the set of attitudes and principles he follows to live a joyful existence in front of hardship and mortality.

Stoicism might be ready for a comeback in the times of Covid-19. The restrictions on life as it was understood before the outbreak, the redefinition of social norms and the economic catastrophe for many people certainly constitute a defining historical moment. Often read a posteriori as hinges from a historical perspective, epidemics often underline the contradictions of a society, its maladapted dynamics and what is insustainable in its constitution. Simultaneously, the interconnectivity that made it possible for a virus to spread on a planetary scale for the first time in history also binds isolated individuals together. Both secluded and digitally available at the same time, individuals from all walks of life face hard questions regarding their future, their wellbeing, their affections, their society.

In this context, an effigy of Marcus Aurelius printed from a 3D model of the collection of the British Museum travels the world and everyday life and seeks to establish dialogues with people through a dating platform. Talking only through his Meditations, the daemon of Marcus Aurelius aims at answering the questions of those who want to chat with him, trying to give some sense of calm and reassurance from the stoic mindset in these tumultuous times.

Chapter II · The profile

Marcus Aurelius, 29.
Emperor at Rome.

Job: Emperor at Rome. School: Stoicism. Distance: less than a kilometer away.

SpiritualityReadingPoliticsWineOutdoors
The cover photo: the bust, double-exposed over the sea.
The cover photo: the bust, double-exposed over the sea.
The bio, one line of Meditations.
The bio, one line of Meditations.
Emperor in a mountain stream.
Emperor in a mountain stream.
Emperor among petanque balls.
Emperor among petanque balls.
Chapter III · The traveler

He went everywhere you went.


The effigy was printed from a 3D model in the British Museum collection, then it left the lab. It rode trains, sat on glaciers, and watched the fog lift over a lake — the profile photos are a stoic travelogue.

Chapter IV · The rule

One constraint: only Marcus speaks.

Whatever a match wrote, the reply was a passage from the Meditations. No small talk and no improvising — just the daemon of Marcus Aurelius trying to hand out a little calm in tumultuous times.

The rule: every message Marcus sent was a line from his own book. Every message the match sent was theirs.
Live not as though there were a thousand years ahead of you. Fate is at your elbow; make yourself good while life and power are still yours.
Sent
116×
His favourite opener, by a wide margin.
Chapter V · What came back

280 human replies to read.

Every screenshot was turned into text, and every message was labelled by who sent it. Here is what 270 conversations look like in numbers. Click any chart to enlarge it.

40.4%

Four in ten answered.

109 of 270 conversations got at least one reply to a Meditations quote.

  • Men40.8% (n=228)
  • Women48.3% (n=29)
  • Ambiguous15.4% (n=13)

Gender is inferred from first names and a hand review, not self-declared. The women and ambiguous groups are small, so read those differences loosely.

Bar chart: 109 of 270 conversations got a reply, 161 did not.
Bar chart of response rate by inferred gender.
12.6%

Rarely did they speak first.

In 34 conversations it was the match who opened, before the emperor said a word. Marcus nearly always led.

  • Men12.3%
  • Women17.2%
  • Ambiguous7.7%

195 conversations were confirmed by hand; 75 were inferred from message order in the screenshot, which is weaker evidence if a screenshot starts mid-chat.

Bar chart: the match wrote first in 34 of 270 conversations.
Bar chart of how often the match wrote first, by inferred gender.
2 messages

Most exchanges were brief.

The typical conversation was two messages long — a quote and a reply, or just a quote. A few went on much further: the longest ran 56 messages.

  • Mean, all3.3
  • Mean, men3.4
  • Mean, women3.5
  • Mean, ambiguous1.2
Histogram of conversation length in messages.
Conversation length histograms, one per inferred gender.
43 vs 12

The emperor writes paragraphs; people text.

Marcus averaged 43 words per message (median 27). Replies averaged 12 (median 6) — a few words, often one.

  • Men, mean (median)11.7 (6)
  • Women, mean (median)13.9 (11)

Women's replies ran slightly longer; the ambiguous group has only 2 replies, so it is left out here.

Overlaid histograms of words per message, Marcus versus match.
Match message length histograms, one per inferred gender.
116×

The line that did the work.

One passage opened conversation after conversation. The next most-sent passages went out about a quarter as often.

  1. Live not as though there were a thousand years ahead of you. Fate is at your elbow; make yourself good while life and power are still yours.

    116×
  2. Whatever this is that I am, it is flesh and a little spirit and an intelligence. Throw away your books; stop letting yourself be distracted. That i...

    28×
  3. It is no evil for things to undergo change, and no good for things to subsist in consequence of change.

    27×
  4. Remember that all is opinion. For what was said by the Cynic Monimus is manifest: and manifest too is the use of what was said, if a man receives w...

    22×
  5. To the rational animal the same act is according to nature and according to reason.

    22×
35% positive

Mostly warm or neutral.

A multilingual sentiment model read all 280 replies, in English, French and Spanish.

35% positive 45% neutral 20% negative
  • Men: positive / negative35% / 20%
  • Women: positive / negative34% / 21%

Sentiment is nearly identical across men and women (the ambiguous bar rests on just 2 replies). It is a model's read of short, informal, multilingual text, so treat it as a rough signal.

Bar chart of positive, neutral and negative replies.
Stacked bars of reply sentiment by inferred gender.
Chapter VI · Behind the numbers

From screenshots to a dataset.

Read the screenshots

Optical character recognition turned each phone and desktop screenshot into text. Tinder's blue "sent" bubbles had to be repainted first, or the engine skipped them.

Tell who is speaking

Each bubble was assigned to Marcus or the match by where it sits on screen, then stripped of timestamps, status bars and other app chrome.

Infer gender from names

An offline first-name dictionary, plus hand-checked lists for Swiss, French, Italian and Colombian names. No photo is ever looked at by the code.

Review by hand

Where names were missing or unreadable, every one of the 204 unresolved screenshots was reviewed manually, with notes on who wrote first and which were repeats.

Remove duplicates

Nine screenshots were re-captures of a conversation already kept, so only the longest copy of each was counted.

Count and read the tone

Descriptive statistics for response, length and opening, and a multilingual sentiment model for the tone of replies.

Privacy

  • Profile pictures were never read, cropped or stored. The code only ever sees text.
  • This page contains no match names, no replies, and no photos of any match.
  • Only first names were ever used, and only to estimate gender.

Honest caveats

  • OCR is imperfect: emoji are dropped and a word here and there is misread.
  • Gender is inferred or hand-judged, never self-reported; the female and ambiguous groups are small.
  • Several screenshots can show one person, and two people can share a first name.
  • The "who wrote first" figure mixes confirmed cases with an inference from message order.
Live not as though there were a thousand years ahead of you.
Marcus Aurelius, Meditations

Built from screenshots collected between summer 2020 and spring 2021. Generated October 10, 2026 by scripts/08_build_story_html.py from the analysis in output/. This page is a single file; it can be moved or emailed on its own.