A number-free mental math method for moving through cities like a covert operative. Fast decisions, no spreadsheets, just shapes in your head.

I grew up on concrete and learned the rest overseas. After a while, you stop “seeing” a city as buildings and streets and start reading it as geometry – lines, angles, nodes, and edges. That lens lets you move cleaner, safer, and smarter. It’s classic tradecraft without the cloak-and-dagger theatrics.

*This is a field guide for professionals and civilians:


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Move like a local operator, think in shapes, and keep it fluid. Foreign and complex urban environments start making sense when you stop counting steps and start reading basic geometry.

[INTEL : Non-GPS Urban Navigation Tactics]

[OPTICS : Guangzhou, China]