I missed Nim (2014)
It seems to me that the evidence is that in the 2010s, it is exceedingly difficult for a new language to break into what I call the &quot;B-class language list&quot; (they aren&#x27;t in the Nobody Was Ever Fired For Choosing (Java&#x2F;C#) set, but the languages you can use pretty much anywhere but Big Enterprise without anybody raising an eyebrow, like Python or Ruby) with some sort of serious corporate backing.<p>There hasn&#x27;t even been much from the 200xs that has broken into that list. Looking at the Tiobe list for concreteness (yes, it may not be perfect but it isn&#x27;t completely wrong, either, so close enough), you have to go to 14 to Swift to find something not from the 20th century. At 17 (Groovy) you debateably have something that wasn&#x27;t pushed by a company (that&#x27;s actually a complicated question), and all the way down to 21 to get to D to find the first thing that clearly comes from a single person anytime recently. (I won&#x27;t go any farther because the list probably is getting to be just noise below that.)<p>I hypothesize that it is because we expect so much from our languages now. If you don&#x27;t have a solution for serving web pages from your new language, don&#x27;t even hope to make that list. But it could also be because developers are nervous about choosing something so obscure and having it just fade away when the competition that doesn&#x27;t have that problem is already pretty good. Compared to 20 years ago we are spoiled for choice, so perhaps getting your head about the rest even in a niche is simply harder than it used to be. But I really don&#x27;t know what it is.... but observationally, it seems to take a lot more than just &quot;being a good language&quot; nowadays to attain great success in the computer language area.<p>PS: This is the sort of thing that leads me to disagree strongly with the idea that the computer world moves quickly. When it requires more than half an average career for dominant language to shift, that&#x27;s not &quot;fast&quot;.