Models · leaf
The tech tree
Sid Meier’s lock-and-key diagram of progress. The semantic tree’s playable twin.
This hangs on Games as models, The semantic tree.
See on the treeA technology tree is a directed acyclic graph of unlocks. Civilization did not invent dependency, but it invented the feeling of dependency for a mass audience. Wikipedia and the strategy-game literature treat the 1991 title as the moment the mechanic became central.
Hang this next to the 2015 semantic-tree sentence and you get the documented relationship this tree is built on: Musk appears to have internalized a game structure as a way of learning anything. Trunk, branches, leaves. Writing, literature, library. Principles, then details.
The cipher overlay will later note that TECH TREE sums to 42 in reverse reduction. That is not why the node is here. The node is here because the mechanic and the learning rule are the same shape.