PART 1 - TONS OF PUNKS, ONE BIG JERK CHAPTER 4: KEYSTROKES AND BRUSHSTROKES Hardware Lotteries

"ECHO 1 represented targets as thousands of flat triangular facets because limited computing capacity restricted its calculations to two-dimensional shapes."

The article explicitly connects ECHO 1's triangular-facet representation and two-dimensional calculations to the computing limits of the period.

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