The theory (backed up with statistics): “British people are more liberal on such issues as same-sex relationships and abortion than they have ever been. At the last count, one in 10 people in couples in England and Wales were in what the official statistics call an ‘inter-ethnic relationship.’ Cannabis smoke regularly wafts around our town and city centres; Glastonbury is as much a part of the national calendar as Wimbledon or the Grand National. And throughout our waking hours, there is one constant above all others: what the dictionary still calls pop music, probably the most potent means of communication human beings have ever come up with.”