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Justin Hodges, PhD

@hodgesj · Physical AI: robots, scientific computing, and digital twins · Substack profile · Technology

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Justin Hodges, PhD has 13,933 followers on Substack as of Oct 31, 2026. 51 publications recommend them, and they recommend 34.

Followers read

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
13,933
read Oct 31
Last 7 days
first number on Nov 7
Last 30 days
first number on Nov 30
Subscribers
8.6K+
rounded by Substack
Paid subscribers
none shown
Recommended by
51
none new in 30 days
Recommends
34
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.

13,60013,80014,00014,20014,400 Oct 31Nov 2Nov 4Nov 6Nov 8Nov 10Nov 12 One reading a day from here 13,933
13,60013,80014,00014,20014,400 Oct 31Nov 4Nov 8 One reading a day from here 13,933
One reading a day, the last of the day. Marked: leaderboard steps (into the top 25, top 10, or #1). Followers are people who follow Justin Hodges, PhD on Substack; they aren't email subscribers.
Show as a table
Daily readings
DateFollowersChangeSubscribersPaid band
Oct 31, 202613,9338.6K+

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

51 publications recommend Justin Hodges, PhD. Justin Hodges, PhD recommends 34, and 6 of those recommend back. Lists read Oct 31.

Recommend Justin Hodges, PhD Justin Hodges, PhD recommends javinpaul88k followers · mutualKaro (Product with Attitude)38k followers · mutualSebastian Barros14k followersData Governance Field Librarynot tracked · mutualInside the Black Box: Crackin…not tracked · mutualSeanlee's Substacknot trackedEl Substack de Carlanot trackedsampath's Substacknot trackedMukhesh's Substacknot tracked Ruben Hassid1M followersPaweł Huryn205k followersUnbiased Science167k followersJack Clark165k followersJeremy Caplan121k followersJustin95k followersSpace Ambition93k followersjavinpaul88k followers · mutualChris Tottman82k followers Justin Hodges, PhD 14k followers
Recommend them They recommend javinpaul88k followers · mutualKaro (Product w…38k followers · mutualSebastian Barros14k followersData Governance…not tracked · mutualInside the Blac…not tracked · mutualSeanlee's Subst…not tracked Ruben Hassid1M followersPaweł Huryn205k followersUnbiased Science167k followersJack Clark165k followersJeremy Caplan121k followersJustin95k followers Justin Hodges… 14k followers
The 9 largest publications on each side, by followers. Bigger dot, more followers. Orange: started in the last 30 days. Gray dots: publications I don't track, so no follower count.

When the recommendations started

1Mar 25134Jun324Sep725Dec62Mar131Jun312Sep
Live recommendations by the month each began, using Substack's own start date. Removed ones aren't listed by Substack, so they don't appear. Substack shows only the 50 newest recommenders, so before Apr 2025 (outlined) I see only those from the 6,392 publications whose full lists I read.
Show as a table
Recommendations started per month
MonthStarted
2025-031
2025-041
2025-053
2025-064
2025-073
2025-082
2025-094
2025-107
2025-112
2025-125
2026-016
2026-022
2026-041
2026-053
2026-061
2026-073
2026-081
2026-092

Recommended by

  • javinpaul88k followers · started Apr 2025 · mutual
  • Karo (Product with Attitude)38k followers · started Oct 2025 · mutual
  • Sebastian Barros14k followers · started Oct 2025
  • Data Governance Field Librarystarted Sep 1, 2026 · mutual
  • Inside the Black Box: Cracking AI & Deep Learningstarted Sep 1, 2026 · mutual
  • Seanlee's Substackstarted Aug 2, 2026
  • El Substack de Carlastarted Jul 9, 2026
  • sampath's Substackstarted Jul 7, 2026
  • Mukhesh's Substackstarted Jul 6, 2026
  • Hammad's Substackstarted Jun 21, 2026
  • Walter's Substackstarted May 28, 2026
  • Le Substack de Element9started May 17, 2026
  • Farhad's Substackstarted May 6, 2026
  • Substack de Ismaelstarted Apr 23, 2026
  • ClariSynthstarted Feb 14, 2026
  • Theo's Substackstarted Feb 1, 2026
  • salman's Substackstarted Jan 28, 2026
  • EEDARAASWANI's Substackstarted Jan 20, 2026
  • Raghav's Substackstarted Jan 15, 2026
  • RemonHany's Substackstarted Jan 8, 2026
  • Le Substack de Yassinestarted Jan 6, 2026
  • Maddi's Substackstarted Jan 1, 2026
  • Tittu's Substackstarted Dec 28, 2025
  • Rishikesh's Substackstarted Dec 22, 2025
All 51
  • near's Substackstarted Dec 22, 2025
  • Matthew's Substackstarted Dec 13, 2025
  • elbaodev's Substackstarted Dec 7, 2025
  • Camille's Substackstarted Nov 26, 2025
  • Taksh's Substackstarted Nov 11, 2025
  • Hansdev’s Substackstarted Oct 2025
  • Cyclop SpaceTechstarted Oct 2025 · mutual
  • A Ngwee for your Thoughtsstarted Oct 2025
  • Bhanu Peddistarted Oct 2025
  • Arsimstarted Oct 2025
  • Le Substack de Wilstarted Sep 2025
  • Depak’s Substackstarted Sep 2025
  • Storytelling for Engineersstarted Sep 2025 · mutual
  • Umut’s Substackstarted Sep 2025
  • Substack von Saistarted Aug 2025
  • Ashutosh’s Substackstarted Aug 2025
  • Amey’s Substackstarted Jul 2025
  • ggplot2 extendedstarted Jul 2025
  • M.Siva’s Substackstarted Jul 2025
  • YaswanthSai’s Substackstarted Jun 2025
  • SHELAS’s Substackstarted Jun 2025
  • Elton Villanuevastarted Jun 2025
  • Power’s Substackstarted Jun 2025
  • Jianjun’s Substackstarted May 2025
  • Thomas’s Substackstarted May 2025
  • Heril’s Substackstarted May 2025
  • Robin’s Substackstarted Mar 2025

Recommends

All 34
  • Europe in Spacestarted Sep 2025
  • Storytelling for Engineersstarted Sep 2025 · mutual
  • NEW ECONOMIESstarted Aug 2025
  • The VC Cornerstarted Aug 2025
  • To Data & Beyondstarted Aug 2025
  • Matt Gamber’s Biotech Newsletterstarted Jul 2025
  • Henry’s Best Hitsstarted Jul 2025
  • CFD Dosestarted Jul 2025
  • Alex Pawlowskistarted Jul 2025
  • The Digital Engineerstarted Jul 2025

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.

Who recommends writers like this one

Publications that recommend at least two other Technology writers with 10,000 to 50,000 followers (71 writers in that group), but not Justin Hodges, PhD.

  • ChatGPT for All@chatgptforall
    recommends 7 of them
  • Chris Tottman@christottman
    recommends 5 of them
  • Vikram Sekar@vikramskr
    recommends 5 of them
  • Jacob Bartlett@jacobbartlett
    recommends 5 of them
  • PhotonCap@photoncap
    recommends 5 of them
  • L'investisseur intellectuel
    recommends 5 of them
  • Tokyo AI Brief
    recommends 5 of them
  • Mohamed elsage
    recommends 5 of them
  • Azeem Azhar@exponentialview
    recommends 4 of them
  • SEMIVISION@semivision
    recommends 4 of them

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