The Turnstone
Investor Due Diligence Report
substackScience
I believe that the science behind important issues should be accessible to everyone.
2K
200 paid
N/A
Pricing
$5/mo
$50/yr annual option
$795
200 paid subs
$795/mo – $795/mo(±0%)
Previously Bi-weekly
0.5 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Aether Pirates of the Matterium! | 97K | N/A | Free | substack |
| The Science of Better | 81K | +19.1% | $5/mo | substack |
| By the Numbers | 75K | +0.8% | Free | substack |
| Humanity United Now - Ana Maria Mihalcea, MD, PhD | 72K | N/A | $5/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 2K | $795 | — |
| Apr 2026 | 2K | $795 | ~0% |
Platform Dependency
Hosted on substack subdomain
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
2K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 140 similar-size peers in Science have paid tiers
Pricing position
$5/mo vs $5/mo category median (280 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $50 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Paid Subscriber Ratio |
| 90/100 |
| 25% |
| The Intrinsic Perspective | 71K | N/A | $7/mo | substack |