I think go and node are more or less of the same "age" and "shininess"?

EDIT: Very much so, they were actually released to the public in 2009.

Ruby was first released in the mid 90s and became the shiny new thing in around 2005 when ten years old.

Sometimes the shiny newness is in the public eye rather than absolute terms.

Not really, Ruby ON RAILS became the shiny new thing, and was released in 2005.