Do You Test Ruby Code for Thread Safety?

Are you a Ruby developer? If you are, I’m pretty sure you have a very vague idea of what concurrency and thread safety are. No offense, but this is what I’ve figured out after dealing with Ruby code and speaking with Ruby programmers over the last half a year. I’ve been writing in Ruby pretty actively recently and I do like the language and the ecosystem around it. Zold, the experimental cryptocurrency we are creating, is written almost entirely in Ruby. What does that tell you? I like Ruby. But when it comes to concurrency, there are blank spots. Big time.