I like having the linearity of definitions and files. It makes reading unfamiliar code bases much easier, as it means the code has a "beginning" and "end." To

I like having the linearity of definitions and files. It makes reading unfamiliar code bases much easier, as it means the code has a "beginning" and "end." To me it fits well with the F# theme of sensible defaults. If you do need to get around it though, you can have mutually referential types in F# if you use the "and" keyword (although the definitions of the types have to be right next to one another). And in the next update to F# you'll be able to have mutually referential types and modules within the same file which is often good enough for most other things you might need that sort of thing for.[1] [1] https://blogs.msdn.microsoft.com/dotnet/2016/07/25/a-peek-into-f-4-1/ https://blogs.msdn.microsoft.com/dotnet/2016/07/25/a-peek-in...