- RationalWiki (RW) is a wiki-based community working together to explore and provide information about a range of topics centered around science, skepticism, and critical thinking. RW is owned by the RationalMedia Foundation (RMF), an incorporated 501(c)(3) nonprofit. The RMF operates the infrastructure that keeps RW running and holds its associated trademarks and copyrights, but it does not govern the community or any content the community produces.