M Puzzle: Less Engineering, Dammit!

by Gregg Favalora

The schematics describe a system that makes horizontal and vertical line segments coast from left to right, wrapping around a 16-character display. The data come from three components called "shift registers," which control individual lights (LEDs) within each character. A description is included as an imaginary data sheet.

The visual flow for each "pixel" in time:

U1 controls the top 3 LEDs for each character; U2 does LEDs 10 and 4 for each character, and U3 handles LEDs 1 and 2. This will be obvious to an electrical engineer.

It is assumed the solver will make a simulation in C and watch the output in a monospace XTerm window. If patient, the answer will appear at the 96th time step for R1=1k and R2, R3=2k. (To prevent the answer from being obvious, I shifted the final state data for Shift reg2 and Shift reg3 by 16 bits.)

INITIAL STATE
Shift reg1:111100101110001110001110100000101110000000110000
Shift reg2:10000010101110101011111101000111
Shift reg3:11000111101011101010010100110001
FINAL STATE (Timestep 96 for R1=1k, R2=2k, R3=2k)
Shift reg1:111100101110001110001110100000101110000000110000
Shift reg2:10111111010001111000001010111010
Shift reg3:10100101001100011100011110101110

In the final state, the following appears:

In other words--in Harvey Twyman's LCD font--"Physicist Werner." The answer is HEISENBERG.

Training:

The clear reference to "knitting" in the last line of the flavortext gives the training puzzle, Knitting. In spite of the suggestions that the untrained/trained answer is AUTHORITARIANISM/"Fearful Symmetry" (or LIBRARIAN/Travelers, say), the trained answer is actually MIND'S EYE.