About: http://webisa.webdatacommons.org/217917228

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It is more like a speed limit of spacetime that both light and gravity and other forces are hitting.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com