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How many companies that do both .Net and Java development and use Scala there are? Or how many will start developing in Scala if they're already proficient in .net? Definitely there will be some, but to base the compiler of such complexity around these few ... well, I just don't think it's worth the effort.

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I've always looked at Scala as a great language to go to if you don't want to be on the .Net stack. But if you're happy with the .Net ecosystem, the combination of C# and F# are very tough to beat. The tooling is great, and the languages are really well thought out.

I don't really know what benefits there are to gain from using Scala on .Net other than the fact that it's cool that it could be done.

Well, the Scala developers are currently moving their build system to Scala. This means they can fully bootstrap their language/compiler, library and build system from one source language.

The .NET port has only added some minor changes to the compiler (which have actually uncovered a bug in the compiler implementation!) and most of the .NET backend works as a compiler plugin, just like the JVM backend or the LLVM backend.

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