I don't agree, because learning F# is essentially learning two very different languages at the same time: first OCaml from which it was initially an implementat

I don't agree, because learning F# is essentially learning two very different languages at the same time: first OCaml from which it was initially an implementation, then C# for all the object/CLR layer. It's easy for people with functional programming knowledge, or who had OCaml as their first programming experience like I did at university, but for people without those exposures I can understand the difficulty.