I also reject the idea that any parameters can be put around this culture for the future, to protect it from "pollution" or "dilution". Culture very naturally involves interchange, as well as evolution, and like it or not, this is a multicultural country and English culture will continue to absorb other influences. The idea that we can preserve some notion of "Englishness" for now and forever as a static, unchanging thing is pure fantasy. Not that it would be a particularly desirable outcome anyway - even for those of us who love English culture and are keen on its preservation.