What is the verbal irony for to build a fire?

In Jack London's "To Build a Fire," the verbal irony lies in the protagonist's overconfidence in his ability to survive extreme cold, despite being warned of the dangers. He repeatedly dismisses the advice of an experienced old-timer, believing that his own knowledge is superior. This ironic contrast between his self-assuredness and the harsh reality of nature ultimately leads to his tragic demise, highlighting the theme of human arrogance versus nature's power.