His main line of argument was that the tremendous displacements and changes he was seeing did not happen in a short period of time by means of catastrophe, but that processes still happening on the Earth in the present day had caused them.
O seu argumento principal era que os enormes desprazamentos e os cambios que estaba vendo non ocorreron nun curto período de tempo por medio de catástrofes, e que eses procesos que seguen ocorrendo na Terra hoxe en día eran a súa causa.