Session
From COBOL to Claude: What Hopper Knew
The most dangerous phrase in the English language is ‘We’ve always done it that way.’” Grace Hopper spent 60 years fighting this mentality. Today’s developers sneering at “AI slop” and rolling their eyes at “vibe coding” are repeating history—the same engineers who said COBOL would never catch on. You’re about to find out why Amazing Grace wouldn’t hire them—and why you shouldn’t either.
In fact, every time you prompt Claude to write code, you’re witnessing the future Grace Hopper predicted in 1955 and throughout her career. Admiral Hopper carried 11.8-inch wires to make nanoseconds tangible. Today, she’d carry LEGO bricks to explain how AI transforms thoughts into code at light speed.
The progression is clear:
Punch cards → Assembly → COBOL → Modern frameworks → Natural language
We’ve reached Hopper’s vision: human language as the primary computer interface.

Brendan O'Leary
Developer Relations at Kilo Code
Annapolis, Maryland, United States
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