Jeffrey Flier ✓

@jflier · Boston, MA · joined 15 Jun 2009

Harvard University Distinguished Service Professor and Higginson Professor of Physiology and Medicine at Harvard Medical School. Former Dean of HMS.

30 456Followers

3 470Following

30 270Posts total

172.8KViews on collected posts

Against accounts of the same size

5 posts from the last 90 days, next to the 10K–100K follower range. shown widely, but few of those viewers react.

Median views14 627this account2 578median for 10K–100K

Reach, %48.03%this account7.77%median for 10K–100K

Engagement, %0.66%this account1.47%median for 10K–100K

Metric	This account	Median for 10K–100K	Ratio
Median views per post	14 627	2 578	5.67×
Reach (views ÷ followers)	48.03%	7.77%	6.18×
Engagement rate	0.66%	1.47%	0.45×

Others in this range → Compare with another account → How these benchmarks are built →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

38.6K4 Apr

17.4K30 Aug

6.1K

5.9K31 Aug

90.2K3 Sep

14.6K

Last 6 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

0.28%4 Apr

0.31%30 Aug

0.34%

0.66%31 Aug

1.72%3 Sep

0.67%

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.47%.

What the audience does

Likes81.9%1 630 in total

Reposts7.3%145 in total

Replies3.8%75 in total

Quotes0.9%18 in total

Bookmarks6.1%122 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Latest posts

Science journalism and advocacy. A fantastic new article by John Ioannidis in a special issue of Perspectives in Biology and Medicine for which I was editor. Explains how @Nature opinion editorials, among others, go wrong. https://t.co/2pkzq6nqJP 14.6K views · 83 likes · 9 reposts · 3 replies 03 Sep 2026 This editorial @Nature on the tragic death of Jason Arday must prompt deep reflection on the failure of editorial leadership at this important but increasingly flawed journal. Very bad for the community of science. 90.2K views · 1.4K likes · 116 reposts · 33 replies 03 Sep 2026 The latest disciplinary review released by @VU_Chancellor is a powerful review of Advocacy in Literary Studies by @NorthwesternU professor Gary Saul Morson. Read it and weep for the field, which needs to recover from its current state in many universities. 5.9K views · 27 likes · 5 reposts · 4 replies 31 Aug 2026 A must read piece by @asymmetricinfo Anti-elite political speaking is usually devoid of clear meaning and masks its own elite identity. 6.1K views · 19 likes · 2 reposts · 0 replies 30 Aug 2026 “Anti-elite politics is often intra-elite politics wearing glasses and a fake mustache,” observes @asymmetricinfo https://t.co/5Q3dzCt77S 17.4K views · 43 likes · 4 reposts · 2 replies 30 Aug 2026 I Led Harvard Medical School, And I Fear What's to Come. My oped in today's New York Times. https://t.co/tRI9CYTJAE via @NYTOpinion 38.6K views · 66 likes · 9 reposts · 33 replies 04 Apr 2025