> 1 person did a rust rewrite that took 6 days that would have taken hundreds of engineers more than a year to do.

The entire bun team was only about a dozen people and they wrote it from scratch.

It would not take hundreds of engineers to port the existing codebase to another language.

I think this is a cool experiment, but some of these claims are getting absurd.

The saving grace here is a rewrite of a project with a good test suite is the sweet spot: LLMs are great at translation and do great with verifiable goals.

I agree it’s still mind blowing compared to before times, though.

> would have taken hundreds of engineers more than a year

This is estimating what, 10 lines per day each? No way translating code is anywhere near that slow.

> 1 person did a rust rewrite that took 6 days that would have taken hundreds of engineers more than a year to do.

Even cheaper would just be to not do it in the first place. Was there a pressing need to rewrite it?

The majority of Bun was written by one guy in less than a year. In what world would a rewrite take hundreds of engineers more than a year to do? The hyperbole is getting ridiculous.

It probably wouldn't take a single person who knew what they were doing more than a year to re-implement Bun in basically anything, by hand and from scratch, i.e. not even looking at source. Writing the code for something you already understand and have built before is incredibly fast.

I'm sure they'll market what you said, but it's so ridiculous that I would hope people would see through this stuff.

And he has zero idea how it works. His capacity for understanding it is tied to his wallet now.

It's actually tied to his employment at Anthropic.