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Michael Spencer

@aisupremacy · AI Supremacy · Substack profile · Technology

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Michael Spencer has 314,051 followers on Substack as of Nov 1, 2026. On the latest board read, Nov 6, 2026, they were #53 on Substack's Technology Bestsellers board. 87 publications recommend them, 32 of them new in the last 30 days, and they recommend 166.

Followers read · Boards read

Last read Nov 1, 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
314,051
read Nov 1
Last 7 days
first number on Nov 7
Last 30 days
first number on Nov 30
Subscribers
238K+
rounded by Substack
Paid subscribers
Thousands
bestseller badge 1,000+
Recommended by
87
+32 in 30 days
Recommends
166
Bestsellers rank
#53
Technology

Followers by day

Tracking since Oct 31, 2026. 2 days of readings. 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.

305k310k315k320k325k Oct 31Nov 2Nov 4Nov 6Nov 8Nov 10Nov 12 12 more days to fill this frame 314,051
305k310k315k320k325k Oct 31Nov 4Nov 8 8 more days to fill this frame 314,051
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 Michael Spencer on Substack; they aren't email subscribers.
Show as a table
Daily readings
DateFollowersChangeSubscribersPaid band
Nov 1, 2026314,051+79238K+Thousands
Oct 31, 2026313,972238K+Thousands

Leaderboard positions

BoardRank nowBest on recordReads on it
Technology Bestsellers#53#534 of 4

Rank on each read

Rank on each read of each board. Each cell is the leaderboard rank; empty means not in the top 100.
WriterOct 3107:00Oct 3113:00Oct 3119:47Nov 621:50Move
Technology Bestsellers54545453▲1

I read every board once a day.

Recommendations

87 publications recommend Michael Spencer; 31 started in the last 30 days. Michael Spencer recommends 166, and 11 of those recommend back. Lists read Oct 31.

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

Aug 22FebAugFebAugFebAugFebAug
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 Sep 2026 (outlined) I see only those from the 6,392 publications whose full lists I read.
Show as a table
Recommendations started per month
MonthStarted
2022-081
2023-052
2023-061
2023-071
2023-081
2023-091
2023-101
2023-112
2024-102
2025-012
2025-021
2025-032
2025-062
2025-071
2025-091
2025-103
2026-013
2026-021
2026-031
2026-041
2026-052
2026-061
2026-072
2026-0919
2026-1033

Recommended by

All 87
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Recommends

All 166

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 50,000 or more followers (70 writers in that group), but not Michael Spencer.

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