There is a lot that goes into the construction of the quotation marks around "raw food". Lots of thought. Maybe that's why I like it? But also simplicity. I explain it now to neophytes as just trying to get the freshest food I can -- there are no lines in the sand.
The single best resource for thinking more about the issues this raises is this summary: http://www.rawtimes.com
and this long essay: http://www.geocities.com
If you like a plurality of viewpoints, and especially for thinking about the ethnological and anthropological, try this "paleodiet" clearing house. There is good research here. http://www.paleodiet.com/ The first essay by ben balzer is a 15-minute readable introduction you can tell your friends about.