Cum ipsi (majores homines) appellabant rem aliquam, et cum secundum eam vocem corpus ad aliquid movebant, videbam, et tenebam hoc ab eis vocari rem illam, quod sonabant, cum eam vellent ostendere. Hoc autem eos velle ex motu corporis aperiebatur: tamquam verbis naturalibus omnium gentium, quae fiunt vultu et nutu oculorum, ceterorumque membrorum actu, et sonitu vocis indicante affectionem animi in petendis, habendis, rejiciendis, fugiendisve rebus. Ita verba in variis sententiis locis suis posita, et crebro audita, quarum rerum signa essent, paulatim colligebam, measque jam voluntates, edomito in eis signis ore, per haec enuntiabam." (Augustine, Confessions, I, 8.)
I have claimed that, in considering the two accounts of the events of 9-11, all theories are conspiracy theories. I anticipate that most people will find this claim puzzling. I bring up Descartes and his Meditations as part of my argument. This probably won't help explain what I mean. Most will remember that Descartes tried to tell us that we can't tell the difference between being awake and being asleep, and that the world may not exist, and other things that seem peculiar. It is difficult to explain something that seems peculiar with something else that seems even more peculiar.