Smarter audiences, sharper campaigns, better decisions. Every week.
Tactics, frameworks, and case studies for marketers and GTM engineers building closed-loop, always-on growth systems.
Growth Needs a Harness Built Around the Audience
What Ivy (iHarness) does for any brand that wants to own its audience on every surface, and why it gets better with every decision.
Featured
From Correlation to Causation
How causal decision science compounds growth, and why the correlation era never could.
What Is Audience Intelligence?
A decision system that scores customers in real time, activates across channels, and learns from every result, not another analytics report.
First-Party Data Activation: How Growth Teams Are Cutting CAC by 3x in 2026
Most growth teams are sitting on a goldmine. Yet most of that data never makes its way into their ad campaigns.
Recent
The B2B email map: who sends what, to whom, and under which rules
The tools are good at sending. What's missing is memory across them: who this person is, which account they belong to, what they've already received, and whether they said stop.
The Marketing Harness
Where causal decisions actually get executed.
Decisioning-Centric vs. Model-Centric AI
The real capital race in enterprise growth.
What Is Warehouse-Native Decisioning?
Decisioning where the data lives: composable, SQL-native, real-time.
Multi-Armed Bandits vs. A/B Testing
Why even the smartest companies still choose the worse option.
Why AI Decisioning Systems Fail
Cold start, the boomerang effect, and local maxima: why AI decisioning is still in its infancy.
What Is Identity Resolution? The Core CDP Mechanism Explained
The same buyer shows up in your data as five strangers. Identity resolution is how a CDP turns them back into one person, or one account.
How to Use Intent Data to Identify Sales-Qualified Leads
Fit tells you who might buy. Intent data tells you when. Here is how the FIRE framework combines both into a real sales-qualified lead signal.
Reverse ETL Tools Compared: Hightouch, Census, RudderStack, and Fivetran
Reverse ETL tools move data one way and stop. Here's how the leading platforms compare on coverage, pricing, and setup, and where a real-time activation loop fits.
Decisions that compound, in your inbox the first Friday of every month.
One essay. One field report. One tactic you can ship Monday. Read by 14,200+ marketers and GTM engineers.
No spam. Unsubscribe anytime.