Brendan O'Leary is a Developer Relations Engineer at Kilo Code. He spends his time connecting with developers, contributing to open source projects, and sharing his thoughts on cutting-edge technologies on conference panels, meetups, in contributed articles and on blogs.

Presentations

23x

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.

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