"Let Down" by Radiohead is about feelings of disappointment, disillusionment, and a fear of being trapped in the repetitive, mechanical cycles of modern life. The song's narrator observes the monotony and detachment of daily existence, such as watching planes take off and land repeatedly and people clinging to bottles of alcohol to numb their sadness and rage. This creates a sense of emotional numbness and alienation, both in others and potentially within the narrator himself. The lyrics express a tension between idealistic hopes for life and the harsh reality of feeling let down by it. Thom Yorke was inspired to write the song while sitting in a pub, imagining people hanging from their bottles of drink, symbolizing their dependence and entrapment. The song also explores the theme of sentimentality as being superficial or fake, emphasizing the emptiness behind emotional expressions in modern culture. Musically, despite the melancholy lyrics, the song conveys a complex mix of sadness and acceptance, with a delicate arrangement that contrasts with the heaviness of the themes. Overall, "Let Down" reflects an internal dialogue about insecurity, control, and the desire for transformation, culminating in a hopeful line about growing wings, symbolizing escape or transcendence from disappointment