It’s Sunday evening, and you’re reviewing another week of incremental progress on five different goals without truly moving the needle on any. You worked out twice, read 20 pages of that business book, spent quality time with family, and kept up with your meditation practice. You’re doing everything right according to the productivity experts. So why does meaningful change feel so elusive?

The accepted wisdom tells us progress comes from small, consistent changes that compound over time. Consistency has its place. But there’s another dimension to transformation we rarely discuss: the catalytic power of intense productivity sprints. It’s this more intense, temporary mode of obsession, argues author Jonathan Goodman in Unhinged Habits, which is key.

What if those steady habits could be supercharged by occasional periods of intense, almost unreasonable focus? And how can we harness this near-term intensity without burning out?

We live in an era that prizes balance above all else. Productivity gurus often preach the gospel of sustainable habits and warn against the dangers of going too hard. But neuroscience reveals something fascinating about how our brains actually change: They respond disproportionately to intensity.

Neuroplasticity is the observation that our brains are highly malleable; they change, sometimes in dramatic ways, to reflect new acquisition of skills and knowledge. In a classic example, University College London studied aspiring London taxi drivers preparing for “The Knowledge,” that notorious test requiring the memorization of 25,000 streets. When they examined the brains of these taxi drivers before and after this intensive study period, they discovered something remarkable: The posterior hippocampus, crucial for spatial navigation, physically........

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