Experimental Mind
Kevin Anderson, Jorden, Melanie JI MuellerA curated weekly newsletter with interesting reads at the intersection of experimentation, analytics and data driven decision making. Get it in your mailbox every Tuesday.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 359 | Founded | 7 years ago | Last Issue | 5 days ago |
| Active | |||||
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kevinanderson.substack.comLatest Issues
Most decisions are two-way doors
This week: on reversible decisions, CRO agency trends, and the six hardest open problems in large-scale experimentation. You’ll also find 1k+ open roles, upcoming events, and a cartoon that made me smile.
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Why your projects don’t show value
This week: Q4 planning season is here, and most epics aren't ready for it. Also: Spotify explains why Bayesian A/B testing isn't worth the complexity. You'll also find 1k+ open roles, upcoming events, and something that made me smile.
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Notes from Porto
This week: I’m back from Future of Experimentation in Porto; a small, intense gathering that left me with more clarity than most conferences give me in a year. Also: the rise of the product builder, and how to get cited by AI. You’ll also f...
Decoding today’s job hunt
Hope you had a great Summer. I decided to give this newsletter (and myself) some time off, but now we’re back with reads, jobs, events and something that made me smile.
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Convert—A/B tests & personalization fo...
A Recap of the 2026 Experimentation Conference at Booking.com
On May 18, 2026, we hosted the third annual Experimentation Conference at Booking.com on our Amsterdam campus. What started in 2024 as an experiment itself — would large-scale experimentation practitioners come together to learn from each o...
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Authors
The writers behind this newsletter.
Product and experimentation leader. Writes the weekly Experimental Mind newsletter. Co-founder ExperimentationJobs.com.
In 2008 Jorden ran his first a/b test. Fast forward to 2026 and he has run experiments across Finance, Search and Travel. One thing is clear after 15+ years of experimentation: most of his ideas turned out to be wrong.
Experimentation at Booking.com
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