Emily Riehl Add us as a preferred source on Google
🔄 Data last refreshed 19 days ago
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🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
1.4K
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Emily Riehl
📊 Post engagement
Recent posts · likes + reposts
Feb 9latest
41
Avg engagement / post
19–44
Typical post (engagement)
2.8%
Engagement vs followers
62/100
Consistent reach
Nov 2022
On Mastodon since
Half of recent posts land between 19 and 44 likes + reposts (median 25) — a dependable floor a sponsored post can count on.
🔥 Top post: In a talk called "A reintroduction to proofs" https://emilyriehl · 123 likes + reposts
📊 Activity & format
Posting cadence
0.07 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
33×
Follows 44 back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Recent posts
View on Mastodon ↗
I wrote a column in Science Magazine celebrating today's Fields Medalists that also describes some the history and motivations for the prize:
https://www.science.org/doi/10.1126/science.aej6433
Congratulations to Yu Deng, John Pardon, Jaco…
Happy pride! I just made a donation to Spectra in honor of Pride Month and to support their work to organize what may be the first ever queer math reception at the upcoming ICM in Philadelphia. Support their work here:
https://secure.give…
Yesterday's Supreme Court decision in Louisiana v Callais brings renewed urgency to the question of how we might one day escape the escalating partisan gerrymandering of US House districts.
In an op-ed for Science originally drafted in ear…
I'm here for the abstract and overcomplicated:
https://xkcd.com/3235
On today's episode of Science Friday, @littmath and I had a conversation about vibe proving and AI for mathematics.
Check it out here:
https://www.sciencefriday.com/segments/could-ai-make-mathematicians-obsolete/
On the latest episode of the Science podcast, Alex Kontorovich and I discuss the challenges of communicating mathematics among professional mathematicians:
https://www.science.org/content/podcast/looking-continents-exoplanets-and-math-hard…
@SciAm gave me the opportunity to share some personal thoughts about the recently reported AI results from the 2025 IMO:
https://www.scientificamerican.com/article/mathematicians-question-ai-performance-at-international-math-olympiad/
new diamond open access journal in logic:
I'm proud to join the editorial board of a new diamond open access journal that is launching today: Zeitschrift für Mathematische Logik und Grundlagen der Mathematik, an electronic English language…
This Thursday in the HoTTEST seminar come hear @jdchristensen! Time and link here:
https://www.math.uwo.ca/faculty/kapulkin/seminars/hottest.html
Sphere bundles and their invariants
Abstract:
Sphere bundles arise naturally in many contexts…
The HoTTEST seminar returns tomorrow with Nikolai Kudasov speaking about the Rzk proof assistant. Join us Thursday from 3:30-5pm UTC here:
https://zoom.us/j/994874377
Slides are available here
https://emilyriehl.github.io/files/identities-calgary.pdf
Happy pride! I just made a donation to Spectra in honor of Pride Month and to support their work to organize what may be the first ever queer math reception at the upcoming ICM in Philadelphia. Support their work here:
https://secure.give…
Yesterday's Supreme Court decision in Louisiana v Callais brings renewed urgency to the question of how we might one day escape the escalating partisan gerrymandering of US House districts.
In an op-ed for Science originally drafted in ear…
I'm here for the abstract and overcomplicated:
https://xkcd.com/3235
On today's episode of Science Friday, @littmath and I had a conversation about vibe proving and AI for mathematics.
Check it out here:
https://www.sciencefriday.com/segments/could-ai-make-mathematicians-obsolete/
On the latest episode of the Science podcast, Alex Kontorovich and I discuss the challenges of communicating mathematics among professional mathematicians:
https://www.science.org/content/podcast/looking-continents-exoplanets-and-math-hard…
@SciAm gave me the opportunity to share some personal thoughts about the recently reported AI results from the 2025 IMO:
https://www.scientificamerican.com/article/mathematicians-question-ai-performance-at-international-math-olympiad/
new diamond open access journal in logic:
I'm proud to join the editorial board of a new diamond open access journal that is launching today: Zeitschrift für Mathematische Logik und Grundlagen der Mathematik, an electronic English language…
This Thursday in the HoTTEST seminar come hear @jdchristensen! Time and link here:
https://www.math.uwo.ca/faculty/kapulkin/seminars/hottest.html
Sphere bundles and their invariants
Abstract:
Sphere bundles arise naturally in many contexts…
The HoTTEST seminar returns tomorrow with Nikolai Kudasov speaking about the Rzk proof assistant. Join us Thursday from 3:30-5pm UTC here:
https://zoom.us/j/994874377
Slides are available here
https://emilyriehl.github.io/files/identities-calgary.pdf
🐘 Community & instance
Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 41 views per post.
📤Posts about 0.1× per week.
🕵️ Fake follower check
Estimated66/100
Good
Credibility score
89%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 89% real, active audience · Low fake-follower risk.
- Engagement (~2.8% of followers engage each post) is around typical for Mastodon.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
category theorist, working mathematician
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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