Res Obscura
Investor Due Diligence Report
substackEducation
Notes on the history of technology, medicine, science, art, drugs, and empire. Also: AI in research and teaching.
9K
900 paid
N/A
Pricing
$6/mo
$60/yr annual option
$4K
900 paid subs
$4K/mo – $4K/mo(±0%)
6.0
30.5
0.41%
(comments + likes) / subscribers
Bi-weekly
0.4 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| AlgoMaster Newsletter | 141K | +0.4% | $29/mo | substack |
| Uncharted Territories | 124K | +0.4% | $10/mo | substack |
| All About Psychology | 104K | +1.1% | $5/mo | substack |
| The Shit No One Tells You About Writing | 84K | N/A | $10/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 8K | $3,816 | — |
| Mar 2026 | 9K | $4,293 | +12.5% |
| Apr 2026 | 9K | $4,293 | ~0% |
Platform Dependency
Hosted on substack subdomain
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
9K subscribers — above the 1K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 57 similar-size peers in Education have paid tiers
Pricing position
$6/mo vs $5/mo category median (493 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $6 | $60 |
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.
| Engagement Rate |
| 53/100 |
| 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| 3Blue1Brown mailing list | 69K | +2.3% | Free | substack |