It's a language for high performance computing (HPC). I think it's the only one that survived out of three languages competing at the time: Fortress (Sun), Chap

It's a language for high performance computing (HPC). I think it's the only one that survived out of three languages competing at the time: Fortress (Sun), Chapel (Cray), and X10. See https://www.cs.indiana.edu/~achauhan/Teaching/B629/2010-Fall/StudentPresns/HPCS.pdf https://www.cs.indiana.edu/~achauhan/Teaching/B629/2010-Fall... Designed mostly for scientific computing on highly parallel machines. Not your typical web-application development :)