Lack of alternative++. Python is too dynamic and slow, gradual typing will help but it&#x27;s still slooooow. For web work, PHP and Hack are popular but often very amateur, node.js works best with microservices and can quickly become difficult to manage. Clojure, Scala, and Java suffer from idiosyncrasies around the JVM. Clojure&#x27;s lispy syntax can be a drag, Scala gets very complex very quickly, and Java is oh-so-verbose.<p>C# is about as close as it gets to the sweet spot in the middle, IMO. But .net not being a first class citizen on all platforms kills that option. Yikes.