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Platform Portability
Uses Substack subdomain (startswithabang.substack.com). Migrating would require subscribers to re-subscribe at a new address.
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Explore the cosmos with astrophysicist and author Dr. Ethan Siegel! From the origin of everything to the fate of the universe, Ethan and Big Think are here to answer your biggest questions.
Data updated Yesterday
Avg Comments
3.6
Avg Likes
34.0
Engagement Rate
0.06%· ~38 likes + comments/post
(comments + likes) / subscribers
Quality Score
Engagement vs Science
0.06% engagement rate
Score Breakdown
Engagement Score
Track CPM rates as they change
Start tracking — freeSubscriber count is a platform estimate — actual growth not reflected in chart
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vs 58 newsletters in Science
62K places you in the top 10% of newsletters in this category.
Engagement Rate
0.06%
median: 0.00%
Posts per Week
2.1
median: 0.8
Publishing Consistency
94/100
median: 64/100
Subscribers
62K
median: 2K
Here's what we know about this newsletter's activity:
Publishing Pace
~2x per week
Very Consistent
Category Rank
#6 of 259
in Science
Engagement Trend
Declining
based on recent posts
Hidden Brain
66K subs
++0.8%/wk
The Roots of Progress
58K subs
The Intrinsic Perspective
70K subs
++0.7%/wk
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Publishing Frequency
~2x per week
Last published May 16, 2026
Usually publishes Sat, Thu
2.1 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
100% of similar-size Science newsletters have paid tiers
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62.0K subscribers and 0.06% engagement — past the threshold where Science newsletters typically attract sponsors.