Xref: utzoo sci.bio:3765 sci.chem:2332 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!mit-eddie!media-lab!minsky From: minsky@media-lab.MEDIA.MIT.EDU (Marvin Minsky) Newsgroups: sci.bio,sci.chem Subject: Re: Forgotten Entities: Do You Remember Any? Keywords: protoplasm Message-ID: <3879@media-lab.MEDIA.MIT.EDU> Date: 30 Oct 90 22:49:02 GMT References: <1990Oct25.232546.12357@portia.Stanford.EDU> <3870@media-lab.MEDIA.MIT.EDU> <4155@kitty.UUCP> Reply-To: minsky@media-lab.media.mit.edu (Marvin Minsky) Organization: MIT Media Lab, Cambridge MA Lines: 20 In article <4155@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes: > I've got one better: ectoplasm (the "spiritual" variety, that is). That reminds me of an entity that badly needs to be forgotten. It is called "intentionality" and was described by F. Brentano in 1874 as the feature or aspect that distinghuishes mental from physical phenomena. It has been revived in the past few years to explain why machines can never "really think", no matter how convincingly they may eventually behave as though they did, and beg for mercy when threatened with termination, etc. The problem is that this revival is disturbing my colleagues and students, who will not accept my declaration that there simply isn't any such thing. Naturally, no one can produce a test for the presence of intentionality because, by its "nature" it is (1) non-physical, so it can't affect any instrument and (2) it is irreducible (according to Brentano) hence cannot be explained. At least those N-rays could be diffracted by aluminum prisms (until Robert Wood of Johns Hopkins managed to palm the prism without being noticed by the demonstrators).