A bien y regarder, tout tourne autour de la trace.
Nous tournons autour, nous y revenons sans cesse, pensant peut-être mieux la fixer, alors que chacun de nos tours et nos retours ne peut produire que son érosion.
Une partie de ce qui se passe ici trouve peut-être son expression la plus achevée dans Robinson Crusoe.
It happened one day, about noon, going towards my boat, I was exceedingly surprised with the print of a man's naked foot on the shore, which was very plain to be seen on the sand. I stood like one thunderstruck, or as if I had seen an apparition. [...] I could see no other impression but that one. I went to it again to see if there were any more, and to observe if it might not be my fancy; but there was no room for that, for there was exactly the print of a foot-toes, heel, and every part of a foot. (Chapter XI)
Car, en effet (revenons y), pourquoi une seule empreinte de pied?