these are introduced below. James E. Young has introduced the notion of 'collected memory' (opposed to collective memory), marking memory's inherently fragmented, collected and individual character, while Jan Assmann develops the notion of 'communicative memory', a variety of collective memory based on everyday communication. This form of memory is similar to the exchanges in an oral culture or the memories collected (and made collective) through oral history. As another subform of collective memories Assmann mentions forms detached from the everyday; it can be particular materialized and fixed points as, e.g. texts and monuments. The theory of collective memory was also discussed by former Hiroshima resident and atomic bomb survivor, Kiyoshi Tanimoto, in his tour of the United States as an attempt to rally support and funding for the reconstruction of his Memorial Methodist Church in Hiroshima. He theorized that the use of the atomic bomb had forever been added to the world's collective memory and would serve in the future as a warning against such devices. See John Hersey's Hiroshima novel. Historian Guy Beiner, an authority on memory and history on Ireland, has criticized the unreflective use of the adjective "collective" in many studies of memory: In its place, Beiner has promoted the term "social memory" and has also demonstrated its limitations by developing a related concept of "social forgetting". Historian David Rieff takes issue with the term "collective memory", distinguishing between memories of people who were actually alive during the events in question, and people who only know about them from culture or media. Rieff writes in opposition to George Santayana's aphorism "those who cannot remember the past are condemned to repeat it", pointing out that strong cultural emphasis on certain historical events (often wrongs against the group) can prevent resolution of armed conflicts, especially when the conflict has been previously fought to a draw. The sociologist David Leupold draws attention to the problem of structural nationalism inherent in the notion of collective memory, arguing in favor of "emancipating the notion of collective memory from being subjected to the national collective" by employing a multi-collective perspective that highlights the mutual interaction of other memory collectives that form around generational belonging, family, locality or socio-political world views. Pierre Levy argues that the phenomenon of human collective intelligence undergoes a profound shift with the arrival of the internet paradigm, as it allows the vast majority of humanity to access and modify