The YouTube video "Social Media is secretly becoming a Casino" by Mrwhosetheboss explores how social media platforms manipulate user behavior to maximize engagement and profits. The video draws parallels between the mechanics of slot machines and social media algorithms, arguing that both employ variable intermittent reward systems to create a cycle of anticipation and addiction. This is done by designing the platform's user interface to eliminate any friction that might make the user consider stepping away, like the use of infinite scrolling and auto-playing videos. The video also highlights how social media platforms use psychological triggers, such as red notification symbols and default notification sounds, to create a sense of urgency and encourage the user to constantly check their feed. Ultimately, the video argues that social media companies, similar to casinos, use these tactics to keep users engaged for as long as possible, often at the expense of their well-being and mental health.