Whysen Blog https://whysen.com/en/blog/ Insights and updates from the world of Causal AI. en Mon, 01 Dec 2025 00:00:00 GMT Correlation is not Causation https://whysen.com/en/blog/articles/2025-12-01-why-correlation-is-not-causation/ https://whysen.com/en/blog/articles/2025-12-01-why-correlation-is-not-causation/ Mon, 01 Dec 2025 00:00:00 GMT causality costs businesses millions - and how to escape the correlation trap.]]> We've all heard this phrase, but do we truly understand the cost of ignoring it? Imagine a retailer discovering that customers wearing winter jackets buy less ice cream[1]. They invest in store heating to reduce jacket wearing - only to find that sales remain flat. The correlation was real, but the causality was reversed: cold weather causes both jacket wearing and lower ice cream sales. This type of error costs businesses millions every year.

Read the full article

]]> The Real Bottleneck in AI https://whysen.com/en/blog/articles/2025-12-02-real-bottleneck-in-causal-inference/ https://whysen.com/en/blog/articles/2025-12-02-real-bottleneck-in-causal-inference/ Tue, 02 Dec 2025 00:00:00 GMT conceptual clarity beats more data when making causal claims.]]> Discussions on causal inference often revolve around algorithms and data volume. The uncomfortable truth is that the weakest link is conceptual: selection bias, missing counterfactuals, and misaligned assumptions. More data does not fix flawed identification.

Read the full article

]]> From Models to Decisions https://whysen.com/en/blog/articles/2025-12-03-deploying-causal-models-workflow/ https://whysen.com/en/blog/articles/2025-12-03-deploying-causal-models-workflow/ Wed, 03 Dec 2025 00:00:00 GMT practical blueprint for turning causal models into reliable production decisions.]]> Researchers produce estimators; engineers ship features. What's missing is a reproducible and verifiable workflow that takes causal models from identification to reliable production decisions. This article proposes a practical blueprint.

Read the full article

]]> Causal Analysis vs. A/B Testing https://whysen.com/en/blog/articles/2025-12-04-causal-analysis-beats-ab-tests/ https://whysen.com/en/blog/articles/2025-12-04-causal-analysis-beats-ab-tests/ Thu, 04 Dec 2025 00:00:00 GMT causal analysis over experimentation - a practical guide for product and data leaders.]]> A/B tests are powerful, but not always feasible. When experiments are slow, unethical, or impossible, causal methods can provide faster, cheaper, and more informative answers - if used correctly.

Read the full article

]]>