Dickens would have known all about that seedy side of life, he was after all a court reporter. His experiences made his stories come to life, and the characters were undoubtedly based on people he would have come across in his early life. Having said that the people who now inhabit the east end of London are not Jews or cheeky cockneys, but Bangladeshis, Pakistanis, Somalians and newly arrived East Europeans, who seem to be rather at the bottom end of the pecking order, not for nothing is that part of the world known for it's poverty. Parts of Brick Lane is all curry houses, but the top end, it's a very long lane, is very eclectic, and very chi chi these days, which i believe is a good thing, otherwise it will get like some areas have in the capital, a mono culture where no European is seen, what a sad day that would be - in the city that is supposed to welcome diversity.