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Wood is useful, but it asks for labor first. You carve, hollow, sand, and seal before you have anything you can drink out of. Bamboo skips all of it. One cut above a node and one cut below, and you are holding a sealed, watertight cup that nobody had to make.
Someone pointed this out, and what followed became an inventory of everything else bamboo does without being asked. It is hollow, but it also comes with built-in partitions that mark exactly where to cut. It is strong enough for scaffolding, flexible enough for a bow, thin enough for a fishing rod. No species of it is poisonous. The young shoots are food. In Japan it has been quietly handling baskets, ladles, flutes, fences, gutters and chopsticks for centuries, and it grows fast enough that a stand can fill in over a single season.
At some point the tone stops being admiring and turns faintly suspicious. The running joke is that bamboo reads less like a plant and more like an item somebody specced for human convenience and then forgot to balance. The counterarguments do arrive, mostly from people who have dealt with a bamboo grove in person.
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My take
Comments loosely translated for tone. Reactions collected from Togetter and X threads.
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“Process wood and you can make a container out of it” ← sure, that tracks
“Cut bamboo and it’s already a container” ← this is overdoing it
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“No poisonous varieties” ← excellent
“The young ones are edible” ← full service, honestly
A joke etymology. Bannō (万能) means “all-purpose,” and its first character is read ban. The gag is that ban plus a little more gets you “bamboo.” In reality the English word arrived via Malay, and Japanese calls the plant take.
Flip it around: maybe containers settled into their current shape because people were already using cut bamboo as containers.
Also, speaking of natural containers, there’s the gourd. (Dried bottle gourds have served as sake and water flasks in Japan for centuries.) That waist practically says “carry me.” Pretty good in its own right.
I wonder if the settlers who went up to Hokkaido were horrified to discover there’s no bamboo there. (Hokkaido, the northern island, was only settled systematically from the late 1800s.)
No cheat plant to fall back on, winters are brutal, bears are brutal, peat bogs are brutal, kumazasa is brutal (a knee-high dwarf bamboo that carpets the forest floor — all of the spreading, none of the useful hollow stems), old-growth forest is brutal, can’t grow rice, cold-damage crop failure is brutal……
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Grows fast, spreads easily, tough and light, and still easy to work with.
On top of that: building material, tableware, baskets, safe drinking water, doubles as a filter, and you can make a whole range of different weapons and traps out of it. Roofing, sun shade, keeps things cool, works as a preservative, makes rafts. The shoots are food and keep as preserved food. Even dead it’s fuel.