Could D have fit Microsoft's needs?

[Walter Bright]

On 7/21/2019 2:55 AM, Russel Winder wrote:
> I wonder of incremental change of programming language in a codebase is just a
> nice concept rather than a practiced reality?
> 
> One of Kotlin's massive advantages was that Java codebases could be
> incrementally transformed as needed from Java to Kotlin. Yet this is not how
> things have happened (as far as I know). Kotlin has taken Android development
> by storm, but this is nothing to do with incremental change of a code base.
> 
> It seems Java codebases are treated as Java, and part Java, part Kotlin is not
> seen as a way forward.

Both can be true. Having the option to do incremental change can be a major 
factor in selection, even if one decides later to not make use of it.