[takeda]

My prediction is that Go will disappear in same way as it happen to Ruby, Perl and others. It currently rides on the fame that it comes from Google "so it hast to be good". It doesn't really provide anything revolutionary, it just is more friendly toward writing specific type of applications. Just by seeing that majority of people who are using Go are the ones who always explore new languages, and you see majority of people coming from dynamically typed languages such as Python, Ruby, PHP and others makes me convinced of this position.

Rust on the other hand also has a bit of hype, but that hype actually has a base. It is due to a features that are quite significant, not because it comes from Mozilla. The ability to do memory safety checks at compile time is quite a big deal (maybe Rust is not first here to offer that, but it is first that it build the entire language around it).

I believe that Rust actually really has a huge chance to replace C and C++ (languages that were developed in 70s and 80s respectively) and influence future languages.

[kibwen]

  > My prediction is that Go will disappear in same way as it 
  > happen to Ruby, Perl and others.

Languages don't really ever disappear, they just become less trendy and therefore invisible to places like HN that revolve around hipness and novelty. Hell, when was the last time you heard about Perl? And yet there is an enormous amount of Perl out there powering systems the world over, and learning Perl will make you quite employable for maintaining and extending these systems. Replace Perl with Visual Basic, or COBOL, or RPG-LE, and this statement remains true.

  > Rust on the other hand also has a bit of hype, but that 
  > hype actually has a base. It is due to a features that 
  > are quite significant, not because it comes from Mozilla.

Longtime Rustacean here, and I slightly disagree. Rust does get a lot of boost from being backed by Mozilla. People are incredibly wary of investing effort in an unestablished language without full-time corporate backing. But yes, the awesome language semantics are enticing in their own right. :)

  > I believe that Rust actually really has a huge chance 
  > to replace C and C++ (languages that were developed in 
  > 70s and 80s respectively) and influence future languages.

I definitely don't expect the world to chuck out C++ and rewrite it all in Rust, though I do expect that Rust will provide an enticing proposition for new systems programming projects that value memory safety while demanding zero-cost abstractions. My hope is that with Rust we can gradually move towards a world that is safer by default.

Finally, I agree that Rust will be an influence on future languages. Just yesterday D proposed something akin to Rust's borrowed references (http://wiki.dlang.org/DIP69), and I'm curious to see if something similar emerges in future editions of C++. There's also Microsoft's secretive M# language, which I suspect will use a similar mechanism.