José Duarte
@validscience · Valid Science by José Duarte, PhD · Substack profile · Science
José Duarte has 557 followers on Substack as of Oct 31, 2026. 4 publications recommend them, and they recommend 3.
Last read Oct 31, 2026 (UTC). Followers are not email subscribers. Substack lists only the newest 50 recommendations for each publication, so a recommender count of 50 or more is a floor. History starts Oct 31, 2026; Substack publishes nothing earlier.
- Followers
- 557
- read Oct 31
- Last 7 days
- first number on Nov 7
- Last 30 days
- first number on Nov 30
- Subscribers
- 435
- rounded by Substack
- Paid subscribers
- none shown
- Recommended by
- 4
- none new in 30 days
- Recommends
- 3
- Bestsellers rank
- not on a board
Followers by day
Tracking since Oct 31, 2026. This is the first reading. Substack doesn't publish past follower counts, so history starts the day I first read a writer and grows by one reading every 3 days (daily if it's on your watchlist). The 7-day change appears on Nov 7, the 30-day change on Nov 30. Recommendation dates below go further back: they're Substack's own.
Show as a table
| Date | Followers | Change | Subscribers | Paid band |
|---|---|---|---|---|
| Oct 31, 2026 | 557 | 435 |
Leaderboard positions
Not on a category leaderboard right now
Substack's boards list the top 100 per category, by paid subscribers (Bestsellers) and by recent paid growth (Rising). I read all 66 of them once a day, so a new entry shows up within a day.
Recommendations
4 publications recommend José Duarte. José Duarte recommends 3. Lists read Oct 31.
When the recommendations started
Show as a table
| Month | Started |
|---|---|
| 2024-02 | 1 |
| 2025-04 | 1 |
| 2025-09 | 1 |
| 2026-07 | 1 |
Recommended by
- Leifur’s Substackstarted Jul 15, 2026
- The Distancestarted Sep 2025
- Geoff’s Substackstarted Apr 2025
- Douglas’s Substackstarted Feb 2024
Recommends
Glenn Greenwald407k followers · started Jul 2022
Razib Khan91k followers · started Jul 2022- Bet On Itstarted Oct 2022
Substack lists the 50 newest recommenders of each publication. I add every recommendation found in the full lists of the 6,392 publications I read, so writers with many recommenders may still be missing a few small ones. "Started" is Substack's date.
Share, badge and embed
Badge for your About page
Shows the follower count and weekly change, updates on its own and links here. Pro removes the small Stackblade mark.
<a href="https://stackblade.app/w/validscience"><img src="https://stackblade.app/badge/validscience.svg" alt="José Duarte on Substack: follower count" height="28"></a>
Substack posts don't take HTML. There, add the badge as an image (its address is in the snippet above) and link it to this page.
Card for a website
A small live card with followers and recommendations. Iframe, 360 by 190.
<iframe src="https://stackblade.app/embed/w/validscience" width="360" height="190" style="border:0" title="José Duarte on Stackblade" loading="lazy"></iframe>