Unconvincing. 1. There's plenty of niches. I don't think anyone is pushing Julia as the new general purpose programming language. 2. Ecosystems and network ef

Unconvincing. 1. There's plenty of niches. I don't think anyone is pushing Julia as the new general purpose programming language. 2. Ecosystems and network effects are real, but if you conquer a niche, you can still win. R's doing fine. 3. Specialists seem to like Julia and are writing good stuff in it. I don't see why that attraction shouldn't bring more users in. Indeed, it's still rising in PYPL, as linked by another comment.