Adam sat down before a fountain that was in the middle of the mall, staring at it as he went over everything that just happened.
Seeing that man give up on everything just to matter, even though his actions were evil, is making Adam contemplate his past, realizing just how close he was to becoming just like that man.
If not for his own self-induced isolation and stumbling upon nihilistic philosophy, he would have done something similar.
Beliving than nothing matters really helped him ignore all the self-hatred he felt for himself and also everything around him, his house, the people he worked with, and also the hatred he carried along for Julia his whole life.
And he had no other choice but to do so. He was already in his late 40s, fat, ugly, living in a rundown neighborhood, fucking prostitutes and drinking himself to sleep.
