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Platform Portability
Uses Substack subdomain (clifhigh.substack.com). Migrating would require subscribers to re-subscribe at a new address.
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clif high's 5GUW reporting. And Woo. Lots of Woo. Explorations of this Matterium & its inhabitants including Space Aliens on the Moon!
Data updated 4 days ago
Avg Comments
298.6
Avg Likes
982.3
Engagement Rate
1.32%· ~1281 likes + comments/post
(comments + likes) / subscribers
Quality Score
Engagement vs Science
1.32% engagement rate
Score Breakdown
Engagement Score
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Track CPM rates as they change
Start tracking — freeAether Pirates of the Matterium! reports a rounded subscriber count of 97K. The platform doesn't expose finer-grained numbers, so week-to-week changes below the rounding threshold aren't visible in a chart.
Add to your watchlist to get notified the next time the reported count shifts.
vs 58 newsletters in Science
97K places you in the top 10% of newsletters in this category.
Engagement Rate
1.32%
median: 0.00%
Posts per Week
1.4
median: 0.8
Publishing Consistency
52/100
median: 64/100
Subscribers
97K
median: 2K
Here's what we know about this newsletter's activity:
Publishing Pace
Weekly
Variable
Category Rank
#1 of 258
in Science
Engagement Trend
Consistent
based on recent posts
The Intrinsic Perspective
70K subs
++0.7%/wk
Starts With A Bang
62K subs
The Roots of Progress
58K subs
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Publishing Frequency
Weekly
Last published May 14, 2026
Usually publishes Sun
1.4 posts/week avg
Science Pricing
$5/mo median
Your newsletter: Free
Monetization Readiness
Science newsletters typically start charging at ~2K subscribers
Above the typical threshold
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97.0K subscribers and 1.32% engagement — past the threshold where Science newsletters typically attract sponsors.