Graydon has been off doing other things for a while now. Off the top of my head, I think he left in 2019. I miss working with him, but there are lots of folks

Graydon has been off doing other things for a while now. Off the top of my head, I think he left in 2019. I miss working with him, but there are lots of folks involved with Swift who think really deeply about this stuff. No complex feature is the work of any one person in isolation.