Think Different by Jakub Jirák: latest posts
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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.
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The Physics of Transformer Inference: Why Attention Is the Enemy of Efficiency
The attention mechanism in transformer models is quadratically expensive to compute. Here's the physics of why, and how the industry is escaping the quadratic trap.
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The Best Travel Kit for Apple Users: One Bag, Every Charger
A travel kit guide for Apple users: one GaN charger for everything, the right cables, AirTags for luggage, plug adapters, and an airline-safe backup battery.
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Mac Studio for video editing: when Ultra makes sense
A research guide to Mac Studio for video editing: M5 Max versus Ultra, task-level benchmark evidence, media engines, proxies and a complete storage route.
