The source centers on Elon Musk's prediction that smartphones will become obsolete within the next decade. He argues that they will be superseded by AI-powered handheld displays that serve as direct interfaces for both local and cloud-based large language models. This shift means that traditional elements like apps, operating systems, and download icons will disappear, replaced by personalized interfaces and content generated in real time by artificial intelligence. Musk views this transition as part of a larger trend toward human-AI integration, suggesting that this new interface will essentially make AI the primary operating system for daily life, potentially eliminating the concept of a separate "device."