<p>Boron is a unique element whose role in the major evolutionary transitions of life has long been overlooked. In this paper, we argue that boron has served as a hidden catalyst in each of the three distinct stages of life’s development: chemical life, biological life, and digital life. In the prebiotic era, borates may have stabilized key biomolecules such as ribose and RNA, facilitating the transition from abiotic chemistry to early self-organizing systems. In biological life, boron operates as a micronutrient and regulator, influencing membrane integrity, mineral metabolism, and microbiome symbiosis through microbiota-accessible borate complexes (MABs). In the speculative but increasingly relevant domain of digital life, boron emerges as a structural component in advanced materials—such as borophene and boron-doped semiconductors—that underlie next-generation information processing and artificial cognition. We propose that each transition between life stages constitutes a catastrophic phase shift, requiring a continuity agent that can bridge fundamentally different modes of information flow. We interpret these signals as a continuity of information processing across boron-influenced substrates, not an assertion of biological equivalence for digital systems. The Boron-Driven Phase Transition Model (BDPTM) offers a new lens through which to view life’s progression from molecules to machines, identifying boron as a consistent enabler of organization, stability, and informational coherence across evolutionary boundaries.</p>