I think the real reason is that Chris Lattner doesn’t want to work on Julia. He’s likely very (and justifiably so) opinionated about these topics, and probably wants a certain degree of creative authority over his projects.
Although from the way some Modular videos are done, it seems nowadays he is more in an overseer role and setting up the direction, while others are the ones actually pushing Mojo and Max tooling forward.
Maybe I just misunderstand it from the presentation format.
He works on Mojo a lot, mostly on weekends. In the past few months, he has worked on strings, collection literals, dependent types, reference captures,
comprehensions, and many other nice language features.
