Investor Due Diligence Report
Karl Schroeder helps you achieve "earned" optimism about the future using a mix of wild science fiction speculation and hard-nosed strategic foresight. Paid subscribers get new serialized fiction, deeper analyses, and more input to the process.
1K
100 paid
N/A
Pricing
$5/mo
$50/yr annual option
$397.5
100 paid subs
$398/mo – $398/mo(±0%)
9.0
8.0
1.70%
(comments + likes) / subscribers
Weekly
1.0 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Humanity United Now - Ana Maria Mihalcea, MD, PhD | 71K | N/A | $5/mo | substack |
| By the Numbers | 71K | N/A | Free | substack |
| Starts With A Bang | 61K | N/A | Free | substack |
| Reckoning with Jason Herbert | 43K | N/A | $8/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 1K | $397.5 | — |
Revenue tracking starts with your first month of data. More data points will appear as snapshots accumulate.
Platform Dependency
Hosted on substack subdomain
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Revenue Model
Active paid subscription tier
Subscriber threshold
1K subscribers — below the 2K category median (based on 160 newsletters)
Has paid tier
Active paid subscription offering
Peer monetization
100% of 113 similar-size peers in Science have paid tiers
Pricing position
$5/mo vs $9.57/mo category average (277 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.
| Engagement Rate |
| 100/100 |
| 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Science Matters | 38K | N/A | Free | substack |