Comment Exactly (Score 1) 511
As you said, they use Java.
You don't really have any citations for anything you said. But I doubt they did huge amounts of refactoring in three months and then stayed with their new solution even after they found out the language wasn't the problem.
"Over time, they wrote more and more parts in other languages, which is natural because they're big and they want each piece to be optimized."
Exactly. I didn't say Java was one language to rule over all. I said it has it's place and companies such as Twitter and Google agree.