How do variations in tire pressure across different terrains, from smooth asphalt to rough gravel and sandy trails, influence the balance between traction, comfort, and energy efficiency, and what metrics or methodologies can be employed to quantify and optimize this balance for varying rider preferences and performance goals. Are there standardized testing protocols or data-driven approaches that could help cyclists better understand the complex interplay between tire pressure, terrain, and ride characteristics, and if so, how can this information be translated into actionable, terrain-specific tire pressure recommendations that account for the unique demands and priorities of different types of riding.