There's probably a few implications to draw from this.
What if, instead, I spend a week testing if Anthropic's new model can rewrite Bun in Rust?
At first, I didn't expect it to work. A few days in, a high % of the test suite started passing and I saw how much the new Rust code matched up with the original Zig codebase. My opinion went from "this is worth trying" to "I'm going to merge this".