Think Different by Jakub Jirák: latest posts
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Why Batteries Are the New Limit of Human Progress
An exploration of how battery technology has become the bottleneck for human innovation, from electric vehicles to renewable energy storage, and why.
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ChatGPT Codex: Parallelising bug-fix attempts and picking the cleanest patch
A field-tested take on parallelising bug-fix attempts and picking the cleanest patch with ChatGPT Codex: what it rewards, where it breaks, and how to keep the workflow honest.
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How to Use Apple Maps Offline, with Guides, and Without Google
How to download Apple Maps for offline use in 2026, build your own Guides, read live transit, and why the privacy trade against Google Maps is real — plus where Apple still loses.
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AI in Appliances: The Smart Home That Actually Works Locally
Smart home AI has been cloud-dependent and unreliable for a decade. Here's why edge inference chips are finally delivering what early smart home promises could not.
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How the British Coal Industry Fueled Industrialization
Britain's Industrial Revolution was built on cheap coal and high wages — a combination that made labor-saving, energy-intensive machinery the rational economic choice. This post traces the institutional and geographic foundations of British coal from Newcastle's coastal trade to Robert Allen's energy price theory.
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iPhone Duo research preview: the useful fold
An iPhone Duo research preview of its two displays, camera trade-offs, app questions and euro launch price, clearly separating announcements from testing.
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iPhone Duo honest review: I paid €2,549 so you don't have to
An honest, plain-English iPhone Duo review after buying the 512 GB model for €2,549: what Apple got right, why the hinge and inner screen are a real risk in normal use, what repairs cost, and who should wait.
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PITAKA California Dream for iPhone Duo: a beautiful case that leaves the weak spot open
An honest review of the PITAKA California Dream aramid case for iPhone Duo: build quality, looks, MagSafe, PitaTap and daily use, and why the uncovered hinge is a real risk for the folding screen.
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The Future of Home Computing: One Quiet Mac Instead of Five Devices
An in-depth analysis of the home tech consolidation trend—from Mac mini to all-in-one servers. What we gain and what we lose irreversibly in the process.
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Claude Code: Checkpointing long sessions to protect yourself from context rot
A field-tested take on checkpointing long sessions to protect yourself from context rot with Claude Code: what it rewards, where it breaks, and how to keep the workflow honest.
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The History of Cargo Insurance in Maritime Commerce
The history of cargo insurance is the history of how merchants solved the problem of concentrating catastrophic risk in individual voyages by distributing it across pools of capital. Without that solution, long-distance commerce would have remained restricted to actors wealthy enough to absorb total loss — which meant it would have remained small.
