Room 10 of 10
Then, and only then, play
CIVILIZATIONS reduces to 69. KNOWLEDGE and TECH TREE print 42, on different faces. PLAYER ONE, HUMANITY, COMPUTER, and VELOCITY share a 111 / 42 pair. The Sun’s escape at 1 AU is 42.1 km/s, which is physics.
Full Reduction
69
CIVILIZATIONS
C3 + I9 + V4 + I9 + L3 + I9 + Z8 + A1 + T2 + I9 + O6 + N5 + S1 = 69
Full Reduction
42
KNOWLEDGE
K2 + N5 + O6 + W5 + L3 + E5 + D4 + G7 + E5 = 42
Reverse Reduction
42
TECH TREE
T7 + E4 + C6 + H1 + T7 + R9 + E4 + E4 = 42
Physics
42.1km/s
Measurement. The letter 42 is play. This speed is the well.
Those letter-sums are arithmetic facts about English. They are not evidence that the trunk is a code. The 42.1 is a measured speed. The Book of 42 already has a name for the letter layer: play. Named faces. No collapsed systems. Hits and misses both kept.
The cipher method is older than this tree. Four English faces, each kept distinct: ordinal, reverse ordinal, full reduction, reverse reduction. TECH TREE prints 42 on reverse reduction. CIVILIZATIONS prints 69 on full reduction. PRESERVATION OF KNOWLEDGE prints 342 on reverse ordinal. TOLIMAN prints 42 on reverse reduction. A seal is called when a sum lands on 24, 42, 69, 111, or 420. The number is not asked to choose a joint the sources did not already name.
You can open the cipher room now. The overlay will also sit on the tree, in a quieter ink, once you unlock it. Nothing in the documented map will change color to match a number. That would be cheating. The looking is the work.