The Hacker News discussion about a developer's week-long switch from Claude to Codex (161 points

The Hacker News discussion about a developer's week-long switch from Claude to Codex (161 points, 180 comments) is a masterclass in tool evaluation — latency, context windows, cost, flow-state impact. Every benchmark misses the same dependency: the visual system rendering the IDE. Sixty hours of sustained near-focus. Blink rate suppressed by two-thirds. Convergence demand held far beyond evolutionary design. For the estimated 3–5 % of software engineers with amblyopia or binocular-vision dysfunction, that week isn't just a tool evaluation — it's an uncontrolled visual stress test with no monitoring. Amblyotube (Meta Quest, Seven Sports) reframes the recovery window. Instead of a separate 'therapy session,' it delivers prescribed dichoptic stimulation inside the YouTube-style content developers already consume to decompress. Each eye receives a calibrated, differentiated visual stream while the narrative remains identical — turning passive viewing into active binocular training. Same experimental rigor we