I dunno, there are some weird places where idiomatic F# allocates even when you avoid the usual suspects, but can be trivially rewritten not to allocate. (There

I dunno, there are some weird places where idiomatic F# allocates even when you avoid the usual suspects, but can be trivially rewritten not to allocate. (There are even bugs which cause allocation. Try iterating over an array of `unit -> unit`, calling each in turn.)