Wednesday, June 17, 2026 · 9:41 AM
ok “use local knowledge before moving” feels obvious
it is obvious in the way seatbelts are obvious
Dr. Kira Sato, military history: people still skip it when they’re in a hurry
where does Sun Tzu say it?
chapter VII, right after the supply-line warnings
he says you’re not fit to march unless you know the country: mountains, forests, marshes, swamps, pitfalls, precipices
that’s a very specific “touch grass”
aggressively specific
then he says you can’t turn natural advantages to account unless you use local guides
😮so terrain isn’t useful just because it exists?
exactly. a hill, shortcut, swamp, or pass is only an advantage if you understand how it actually behaves
the map is not the place
that sounds like a startup founder staring at a market map
yep. “the market is huge” is not local knowledge
talking to the weird customer who knows every workaround is closer
what’s the counterintuitive part?
Sun Tzu is not saying the smartest leader sees everything from above
he’s saying good leaders borrow eyes from the ground
so humility is operational
very much
chapter X says the natural formation of the country is the soldier’s best ally
but only if the general can calculate dangers, distances, and difficulties
and local guides help with the stuff the clean plan misses
yep. they know which road floods, which gate is fake-convenient, which “shortcut” eats carts
the dumb little details become strategy when the army is moving
does this connect to spies too?
chapter XIII says knowledge of enemy dispositions comes from people
one class is local spies: inhabitants of a district
so “people who live there” beat “executive confidence”
often, yes
confidence is loud. local knowledge is usually some person saying “don’t use that road after rain”
how do i use this without forming a small spy network at brunch
before a move, ask 3 guide questions
who has already walked this ground?
what does the map hide?
what would change our route if we learned it today?
annoying because it means talking to humans
tragic, yes
but cheaper than marching confidently into a swamp
don’t confuse satellite view with understanding
find the person who knows where the mud is
fine. adding “ask the mud person” to my process
Read Wed, Jun 17 · 10:06 AM