I had been encouraged to go to Thamesmead before it is too late and the dream of 1960s social housing which turned into the nightmare of 1970s dystopia is finally demolished.   In truth, it looks as if it hasn’t long to go, with the Lasdun-like ziggurats by the lake all now boarded up.   I liked the surrealism whereby the streetnames are called after leftist heroes – Octavia Hill, Lytton Strachey and, more unexpectedly, Raymond Postgate:-