See Twisted Matrix Laboratories
> E, Smalltalk, and Scheme proved particularly influential. In E's,
there is a
According to <http://www.zoteca.com/information/wp/twistedusenix.pdf>
> uses the simple, flexible and robust capability security model,
Unless stated otherwise, all text on this page which is either unattributed or by Mark S. Miller is hereby placed in the public domain.