Andrew Jaffe

Andrew Jaffe✓

Mastodon @jaffe@mastodon.social
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🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→

Every booking is a normal escrow-protected deal.

Followers
227
Account age
7 yrs

Known for

This is only of niche interest, but it’s great to be at the Sterrewacht group at the University of Leiden, drinking from an old-school early-90s vintage CITA (Canadian Institute for Theoretical Astrophysics) mug. https://www.universiteitleiden.nl/wiskunde-en-natuurwetenschappen/sterrenkunde1 views This is only of niche interest, but it’s great to be at the Sterrewacht group at the University of Leiden, drinking from an old-school early-90s vintage CITA (Canadian Institute for Theoretical Astrophysics) mug. https://www.universiteitleiden.nl/wiskunde-en-natuurwetenschappen/sterrenkunde

📊 Post engagement

1
Avg engagement / post
0.4%
Engagement vs followers
Aug 2018
On Mastodon since

🔥 Top post: This White House paper marks a huge change to US science funding · 2 likes + reposts

📊 Activity & format

Posting cadence
3.8 / week
Posts several times a week.
Content mix
Mostly text
Recent: 10 text · 2 image · 0 video.
Follower / following
1.3×
Follows 181 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post This White House paper marks a huge change to US science funding, trying to pick tech winners, alongside its efforts to align science with its right-wing ideology. For a party supposedly against communism, they are doing their best to reproduce some of the worst excesses of the … ★ 2
This is only of niche interest, but it’s great to be at the Sterrewacht group at the University of Leiden, drinking from an old-school early-90s vintage CITA (Canadian Institute for Theoretical Astrophysics) mug. https://www.universiteitle… ★ 1 UK Science moves from DSIT to DBIST. Should we be worried? (I have no idea.) https://www.sciencemediacentre.org/expert-reaction-to-closure-of-dsit-and-moving-science-into-new-department-for-business-innovation-science-and-trade-the-appoint… Good (depressing) discussion of the effect of the large cuts to the UK’s astrophysics and particle physics programs. (The government’s own “explainer” is not very good…). https://lheurtier.github.io/STFCprio.html ★ 1 Presented at a meeting today: “Remaining challenges are systemic rather than structural.” What does this mean? What My Thirty-Year-Old Algorithm Taught an AI: https://andrewjaffe.net/blog/2026/07/what-my-thirty-year-old-algorithm-taught-an-ai/ ★ 1 Goodyear Blimp over the Royal Albert Hall, London. Fun paper “The Squealer: Sensification of model exploration and model misfit” with new co-authors Andrew Gelman, Eliot Carlson and Philip Greengard, all computational statisticians in the New York area. https://arxiv.org/abs/2606.29842 Heading off on a wild suit chase, somehow involving the exchange of bank details and morning dress in an English pub. Hey Peter, I’m not planning on retiring any time soon! https://telescoper.blog/2026/07/01/remarks-after-dinner/ ★ 1 This meeting has been going on here at Imperial College for a few days. I am humbled and honoured by my friends and colleagues who have come to London. https://www.imperial.ac.uk/events/205637/professor-andrew-jaffe-60th-birthday-conferenc… @atpfm My kids, now 8 and 10, complain “I’m bored” all the time. My wife came up with the excellent rejoinder “Only boring people get bored.”

🐘 Community & instance

Home server
mastodon.social
A large general-interest Mastodon server. On the fediverse the server a creator picks hints at their community — this one spans all topics.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Aug 2018
An OG fediverse account from Mastodon's early years — a long, established presence.

💡 Facts

🗓️Joined Mastodon in 2018 — 7 years ago.
👁️Averages 1 views per post.
📤Posts about 3.8× per week.

🛡️ Audience credibility

54/100 Fair
  • Est. 72% real, active audience · Medium fake-follower risk.
  • Low content engagement (~0.4% of followers) — a sign of an inflated or inactive audience.
  • Verified account.
  • Established account (7+ years old).
Est. authentic audience
72%
Fake-follower risk
Medium

Heuristic estimate from view-through, engagement vs size and recent growth — a screening signal, not a guarantee.

About

Astrophysics, cosmology, Bayesian inference, parenthood, politics, rock ’n’ roll, and more. Professor at Imperial College. He/him/his.
The Random Universe is published by Yale University Press. https://yalebooks.yale.edu/book/9780300250503/the-random-universe/

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Midfoils Tech :donor: Midfoils Tech :donor: 18% Admiral Memo Admiral Memo 17% Wiedergænger Wiedergænger 16% Samantha Bryant (She/Her) Samantha Bryant (She/Her) 15% Compassion’s COMPASS Compassion’s COMPASS 10% paul paul 10%

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