This is kinda true, but not in the sense that you mean it. And maybe not across the board, but my clients are very comfortable with the (very few) F# solutions

This is kinda true, but not in the sense that you mean it. And maybe not across the board, but my clients are very comfortable with the (very few) F# solutions we've done. Ocaml clients generally use it for stability, or correctness, they certainly aren't competing in the same sphere that kotlin, scala, Java really operate in. Prominent in the financial spade especially, but the trend is the same everywhere. Reason may eventually help ocaml move closer into those spaces, as people are coming to ML with more openness and are more eager to learn and get involved, so that'll be cool to see in the future. Anyways, don't count F# out either. I'm no expert, only ever used it with other project leads and with smaller clients, but MS is doing impressive work lately, like NET Core and stuff like that. They at least can show that making net more visible and flexible is part of what they're after. Java won't be killed. Ever. But people may stop writing it eventually.