Você precisa de chaves. Precisamos ajudar o Teddy a encontrar as chaves dele! : -)
Brincadeira à parte, você deve dar atenção ao que o Teddy diz diretamente antes do vídeo linkado.
Teddy: "So you lie to yourself to be happy."
e mais tarde:
Teddy: "Yeah I guess I can only make you remember the things you want to be true. Like Jimmy down there."
Leonard: "He's not the right guy."
Teddy: "He was to you. You got your revenge. Enjoy it while you still remember."
e, às vezes, mais tarde (no vídeo vinculado), Leonard está pensando:
"Do I lie to myself to be happy? In your case, Teddy, yes I will."
enquanto ele está escrevendo a placa de Teddy para formar uma nova tatuagem.
Observe também a memória de sua esposa na cena em que ele está dirigindo para a sala de tatuagem - especialmente observe o peito.
On his chest is tattoed "I've done it." while is wife is alive.
Então, o que fazemos com tudo isso?
Everyone is using Leonard - including himself. He fudges his informations to stay on a constant path of Revenge. That is the thing that makes him happy. Probably it's because he killed his wife with an overdose of insulin, a story he attributed to Sammy Jenkins. He can't stand that, he needs to see "Johnny G." as the guilty for the death of his wife, although she survived the assault and rape (as his memory in the car-drive-scene shows).