[hiAndrewQuinn]

I prefer fully async for the simple reason that programming is all text.

A programmer is first and foremost a textsmith. They create increasingly complex textual creations, and develop a deeply refined, idiosyncratic toolkit over the years for doing so. No reason to strip them of their best toolset if you don't have to.

[sojournerc]

If a job as a developer was 100% coding you might be right, but collaboration, problem solving and brainstorming work far better in person, at least in my experience.