Trend Longevity Rating
real progress in parts; other parts stalled or got overtaken
How this trend held up
The research infrastructure the book describes kept expanding — the federal BRAIN Initiative it profiles remained a major, well-funded program through the 2020s, and brain-computer interfaces advanced dramatically, including the first human Neuralink implants in 2024. But the specific clinical promise — using brain scans to personalize mental-health treatment at the bedside — remains more research ambition than everyday practice in 2026; precision psychiatry guided by neuroimaging has not yet reached routine care. Neuromarketing, the trend's other half, stayed a niche specialty rather than a mainstream advertising tool. The science advanced; the two applications the book bet on haven't caught up to it yet.
Every past trend prediction is re-reviewed and graded with a Trend Longevity Rating, measuring how much each originally curated trend still matters years later.
