I'm a C++ developer, and Rust looks very exciting to me. Maybe I'm optimistic, but Rust really looks like it can be a serious C++ contender in the long run.<p>Talking with other C++11/C++14 users here, the general feeling is that, yes, C++ is a good language because of the performance you can get out of it and some of the nice features that have been added, but the language carries around a lot of cruft that is unavoidable due to its age and maturity.<p>C++ has always been an expert's language. These days it's the expert's expert language++. There are no shortages of landmines and gotchas in the C++ landscape.<p>Modern C++ is a new language, and it really does help, but for the first time there's another language that can actually fill those same shoes.<p>A really big deal that isn't really addressed by golang is the fact that you can produce shared libraries with rust, and call them from existing C/C++ programs through a C interface. That's a really big deal in places with a lot of legacy code.<p>Another big deal (from the scientific computing POV) is the lack of garbage collection. Yes, GC is helpful, but replacing C++ means squeezing every last bit of performance out of your hardware. Rust does not sacrifice in this regard.<p>I really hope that Rust has a bright future. It's almost like "C++ done right", but I would stray away from such a label since someone might Linus you and say, "there's no way to do C++ right".<p>I also view golang as the successor to Python. It's faster, modern, addresses concurrency, and makes things easier for developers. It takes a strongly opinionated stance, and that's exactly the right choice for many problem domains.<p>Python, unfortunately, is dead to me. The GIL is a deal-breaker, and even though we have <i>lots</i> of Python code in production, I can definitely see a future where Python is phased out in favor of something like golang.<p>Basically, I'm bullish on Rust + Golang, neutral on C++, and slightly bearish on Python/Ruby-like languages that do not address the concurrency problem.