Why Wasn't Ruby 3 Faster?

I'm seeing a lot of disappointment about the speed of Ruby 3 out there. I think there are a lot of reasons for that, and I think they're worth looking at.So: why wasn't Ruby 3 faster? Did it break its promise? (Spoiler: I don't think so, but I understand why some people do.)First: Faster Than What?I think some of the problem was misplaced expectations. People didn't understand what "three times faster" was supposed to mean. I don't think people thought it through, but I also don't think it was communicated very clearly.