I've run 200+ newsletter split tests with 65,000+ subscribers over 4 years

The results destroyed everything I thought I knew about what works

I've never shared this data publicly before

Until now... 👇

Learned Vim 14 years ago

Still using for:

1. Obsidian (obsidian.nvim)

2. Arc Browser (Vimium)

3. Cursor

4. Git