executive function

The age a model assigns you

When software estimates how fast a brain is ageing, a private process becomes a score. Identity and threat follow the number — not, automatically, the tissue.

Nou Heravi

The classroom without a pocket

Phone bans are not a morality play. They are a mixed empirical literature about attention, equity, and what a developing control system is asked to practise.

Nou Heravi

The inner voice that is no longer only yours

After enough fluent completions, some people notice a stranger’s cadence in thought. That report is phenomenological. Inner-speech science is older, and it does not yet include this residue as a finding.

Motivation is not a mood — it is a circuit people will sell

Animal work on orexin and persistence is real. The leap from rat breakpoint to a human product is not.

The mind that outsources thinking

When fluent machines answer before we finish forming the question, judgment does not vanish overnight. It thins — rehearsal by rehearsal — until expertise becomes a feeling we can no longer check.

Nou Heravi

Notification debt: the invisible cognitive tax

Every unread badge is a half-open loop. The cost is not the glance. It is the residue in working memory.

When search replaces memory, what do we still know?

External memory is ancient — notebooks, maps, other people. Instant search changes the bargain: we outsource not only facts, but the paths that once made facts ours.

Nou Heravi

When AI drafts the hard parts, judgment goes quiet

Delegation to models can free expertise — or erode the practice that made expertise possible. Rehearsal is how competence stays alive.

Attention is not a UX metric — it is public health

If attention is the substrate of learning and self-control, design that harvests it is not only a taste. It is an exposure. The size of the effect is still argued; the frame is not empty.