Blog

What the tests measure, what the numbers mean, and what moves them.

• September 3, 2026

  How many objects can you track at once?

  The surprising, hard limit on how many moving things your attention can follow at the same time, and what it predicts about driving and sport.

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• September 3, 2026

  Understanding your Human Index

  What the single Human Index number is built from, what it can and cannot tell you, and why a low score on some tests does not count against you.

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• September 3, 2026

  Why the Stroop effect is so hard to beat

  Naming the ink colour instead of reading the word should be easy. It is not, and the reason it is not has made the Stroop task one of psychology's most durable tools.

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