Is it just because they both have "def" and "puts"? Cause that's just about where the similarities end :-)
FWIW, I've been using elixir for about a year now, and I think it's fantastic. I still use node & ruby for scripts (which can get complicated, but almost always for one-offs and asynchronous processing), Go for anything I actively want to share memory (though, started using Crystal, can't wait for threads), and OpenResty for any web proxy/middleware stuff. But Elixir is now the lions share for me and I find it fun and productive.
"Goal
I want to build a language that focuses on developing microservices. Which should be performant and easy to write. This is why Rooby has Ruby's user friendly syntax and is written in Go."
There is a wide range of languages to pick the one that better suits our style from. That's great and I like that people keeps trying.