Which hipsters with Ruby and Node will burn away.

Node and Ruby: The beef and pork of technology.

Sorry for killing the vibe of the joke, but what does that expression mean? (Non-native English speaker)

Eating beef and pork is tasty but really bad for the environment.

"really" is sort of relative here

Yeah, of course you don't stop global warming by going vegetarian, but having some more lentils and less meat wouldn't hurt either: http://static.skepticalscience.com/pics/EWGGHGLCA.jpg

Oh I see. Thank you!

I hope you are being sarcastic.

He's not. Inefficient code multiplied by millions of users = quite a lot of coal being wasted.

For example AirBNB talks about 2000 web servers with Rails. I bet they could be 200 web servers with Java. So because of Ruby, we have 1800 servers burning coal in a datacenter somewhere.

Indeed. And to be clear - I'm not saying everyone needs to do everything bare metal. But more often than not, inefficiency comes out of people's laziness. But that very laziness gets dangerous when multiplied millionfold, which is what happens when a service gets popular. Therefore I think making things efficient deserves at least a passing thought.

Not really. Node and Ruby both increase global warming