The Thinking Arc

Investor Due Diligence Report

substackCulture

Think human in an AI world. You weren’t meant for brain rot. Mental practices to reclaim your curiosity, think for yourself, and feel mentally alive again. 🖌️ Writer and ex-psychologist. Words in New Scientist, SLATE, Forge, Elemental, and more.

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Key Metrics

Subscribers

70 paid

Verified

Weekly Growth

Paid Sub Retention (30d)

Insufficient data

12 of 30 days needed

Revenue Analysis

Pricing

$9/mo

$90/yr annual option

Est. Monthly Revenue

$500.85

70 paid subs

$501/mo – $501/mo(±0%)

Engagement

Avg Comments/Post

4.3

Avg Likes/Post

14.3

Engagement Rate

1.87%

(comments + likes) / subscribers

Quality & Publishing

Audience Quality Score

89Good

0100

Publishing Pace

Weekly

1.8 posts/week

Score based on available components only.

Component	Score	Weight

Competitive Landscape (Culture)

Newsletter	Subscribers	Weekly Growth	Price	Platform
Miranda July	64K	+0.8%	$6/mo	substack
Mini Philosophy	60K	+0.8%	$8/mo	substack
My Life in the Past	59K	+1.8%	$6/mo	substack
Feature Shoot	57K	N/A	$10/mo	substack

Revenue Trajectory

Estimated monthly revenue over time

Month	Subscribers	Est. Revenue	Change
Mar 2026	1K	$500.85	—

Revenue tracking starts with your first month of data. More data points will appear as snapshots accumulate.

Risk Assessment

Key risk factors for due diligence

High

Platform Dependency

Hosted on substack subdomain

Medium

Key Person

Single-author publication — key-person dependency

Low

Audience Concentration

Consistent engagement across posts

Low

Revenue Model

Active paid subscription tier

Monetization Readiness

Monetization status

Subscriber threshold

1K subscribers — below the 2K category median (based on 1889 newsletters)

Has paid tier

Active paid subscription offering

Peer monetization

100% of 866 similar-size peers in Culture have paid tiers

Pricing position

$9/mo vs $7.27/mo category average (3305 newsletters)

Pricing History

Date	Monthly	Annual
Mar 2026	$9	$90

Data Quality

Report Data QualityFull - All metrics available

Subscriber Confidenceverified

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.