Hello, World — Why I'm Starting This Blog

I've spent the last 8+ years buried in cohort tables, funnel dashboards, and A/B test results — and surprisingly little of that ever gets written down anywhere permanent. This blog is where that changes.

Expect posts on things like:

• Cohort retention analysis, and where it quietly lies to you
• Designing A/B tests that survive contact with a real product team
• SQL patterns I reach for constantly (window functions, I'm looking at you)
• Notes from building growth analytics at scale

Why now

Mostly because writing things down is the fastest way I know to find the holes in my own thinking. If it's useful to someone else along the way, even better.

select
  date_trunc('month', signup_at) as cohort_month,
  count(*) as users
from customers
group by 1
order by 1;

More soon.