James D. G. Dunn's 2003 study, "Jesus Remembered", was the onset for an "increased [...] interest in memory theory and eyewitness testimony." Dunn argues that "he only realistic objective for any 'quest of the historical Jesus' is Jesus "remembered"." Dunn argues that Christianity started with the impact Jesus himself had on his followers, who passed on and shaped their memories of him in an oral tradition. According to Dunn, to understand who Jesus was, and what his impact was, scholars have to look at "the broad picture, focusing on the characteristic motifs and emphases of the Jesus tradition, rather than making findings overly dependent on individual items of the tradition." According to Dunn, the remembered Jesus was Jewish, set in first-century Palestine. Central in Jesus' message was the idea of an inclusive Kingdom of God, which was already coming into existence. Dunn deems it possible that " talk of rejection (the prophetic tradition), of the son of man suffering, and of a cup to be drunk and a baptism to be endured began in greater or less part with Jesus himself reflecting on his own destiny."