Peter Alexander:
http://c0de517e.blogspot.ca/2014/06/where-is-my-c-replacement.html?m=1
From the post:
If I have to point at what is most needed for productivity, I'd say interactivity. Interactive visualization, manipulation, REPLs, exploratory programming, live-coding.<
A language has both ~native efficiency and is usable for that level of interactivity is Julia :-)
Bye, bearophile