It's notable mostly due to who created it, Evan is the cofounder of Figma and the creator of ESBuild.

Based on the fact he's noted "A little experiment, please ignore" and the language he created and it's written in (Skew) hasn't been touched since 2021, reduce is significance in my view. But it's always interesting to see what these incredible creators have built in the past.

More recently he's been playing with CRDTs with some interesting experiments: https://madebyevan.com/algos/