I do like learning new languages, but there's a certain amount of fatigue in this particular space, given the pace of announcements and limited time. There's a worry that one could spend all one's available time for learning new things and have learned nothing of value in two years.

For this to be of value, it has to provide at least one of four things:

1. Becoming a widely-adopted system (like node.js)

2. Strong influence on widely-adopted systems (like Elm)

3. Insights that influence one personally (like most any lisp)

4. More fun than alternative things one could be playing with