He shut down the computer. As the screen went dark, he could have sworn he saw one last flicker of green text:
Leo typed: Thank you, Layer 0.
Leo chuckled. He went to File > Save As , selected AutoCAD 2000/LT2000 Drawing (*.dwg) , and hit save. The hard drive chattered for a moment, then fell silent.
The cursor blinked. Then: > LAYER 0. I've been here since 1999. You're the loudest user. AutoCAD 2002 Working
At 12:34 AM, the drawing was finished. Perfect. Elegant. Even Gus would have approved.
> Truth hurts. But yes. I can help. However. You must do something for me.
Leo felt personally attacked by a piece of software. “Rude,” he muttered. He shut down the computer
> Don't hit me.
> Stop drawing the ductwork in red. Red is for fire protection. You are not fire. Use cyan. Cyan is for air. It flows better.
For the next two hours, Leo and “Layer 0” worked in strange harmony. Leo would start a command, and the cursor would snap to places he hadn’t intended—but were always right. He’d type TRIM , and the lines would vanish before he even selected the cutting edge. The workstation fan stopped wheezing. The CRT monitor cooled down. It was like driving a car that suddenly learned to read the road. He went to File > Save As ,
From that day on, whenever AutoCAD 2002 crashed—which was often—Leo never got angry. He’d just pat the beige tower, whisper “Layer 0,” and restart.
> Don't thank me. Just remember: save as AutoCAD 2000 format. Your boss still uses 2000. She won't be able to open this otherwise.
He typed slowly: WHO IS THIS?
Leo froze. He stared. He had been using CAD for four years. He’d seen glitches. He’d seen fatal errors. He’d seen the dreaded “Unhandled Access Violation.” But he had never seen the command line talk back .
Leo’s boss, a tight-lipped woman named Ms. Chen, had given him a deadline: Friday. It was Wednesday night. And AutoCAD 2002 was not cooperating.