Starting a newsletter on business experimentation, ad testing, life testing, etc... what would you find interesting?

I treat basically everything like an experiment. I realized that's essentially the startup culture too, and it's what my main project centers around, so I thought it'd be cool to get other experimenters to talk about their theories, tests, and results for others to learn from...

I think I'll include:

1. Experiment run by a founder (sourced from IndieHackers and other startup communities)
2. Testing tools and repeatable processes that solve chaotic problems (like everything in startup life)
3. DIY advice for running your own similar experiments

But I'm still working out the template and topics.

What would be most valuable information to include? Is this something even interesting enough to others to pursue?

Might also include any failures people have had? Since failed tests teach us just as much if not more than successful ones...