Flow Optimization

Flow is the state of complete immersion where users lose track of time and feel in control. Protecting it is a design responsibility.

Evidence Tiers

[Research]   — Peer-reviewed studies, controlled experiments
[Expert]     — Nielsen Norman Group, recognized UX authorities
[Case Study] — Documented examples from major products
[Convention] — Industry practice, limited formal validation

Multiple tags = stronger evidence: [Research][Expert]
Mixed findings noted as: [Research — Mixed]

Flow State Foundations