It's very serious. There's a few people working on it. Mike Carson is leading the project. 2013 Bitcoiner with over 10 years in traditional domains. Park.io Here's the github:

GitHub

Spaces Protocol

Scalable & Permissionless Bitcoin Identities. Spaces Protocol has 11 repositories available. Follow their code on GitHub.

Documents:

Spaces Protocol

Scalable & Permissionless Bitcoin Identities