Word Count (Per Post)
Monthly Word Volume
Total words per month with 3-month moving average.
Monthly Post Count
Readability (Per Post, Flesch-Kincaid Grade)
Readability Trend (Monthly Avg)
Sentiment Trend (Monthly Avg)
Comparative AFINN score; above zero is more positive.
Sentence Length Trends
Question Density
List vs Prose Ratio
Vocabulary Growth
Named Entity Tracker (Top Entities Over Time)
Seasonality Index (Recurring Patterns)
Index 100 = overall average across all years. Shows recurring monthly patterns in words, sentiment, and readability.
Self-References
Links pointing back to newsletter.kahvipatel.com -- how often each post references previous newsletters.
Days Late
Days after the end of the covered month that each newsletter was posted.
Deliveries vs Opens (Substack)
Open Rate (Substack)
Time to First Open (Minutes)
Subscriber Growth
Top Open Countries
Publication Timeline
When each newsletter was actually sent, with subject line and subtitle.
| Post | Subtitle | Posted | Days Since Last |
|---|
Opening Lines
| Post | Opening Line |
|---|