Samuel Klein is an engineer and experimental ontologist, currently developing the Underlay Project for federating global public knowledge. He is a co-founder of the Knowledge Futures Group, designing ways to record and curate research that minimize barriers to entry and address systemic bias. He previously served as trustee of the Wikimedia Foundation, content director for One Laptop per Child, and built tools for translation, stargazing, and teaching physics.
On Wikipedia: https://en.wikipedia.org/wiki/user:Sj
(Photo by Lane Hartwell, CC-SA-3.0)