"Jarred Sumner estimated that rewriting Bun conventionally would require approximately a year of work by a small team, compared with eleven days for his AI-assisted Rust rewrite."
Sumner documents an eleven-day AI-assisted port of Bun from Zig to Rust, contrasting it with his estimate that a conventional rewrite would occupy several experienced engineers for about a year. The comparison illustrates the expansion of feasible engineering work when implementation costs decline.
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