What are some unconventional ways to utilize Zwifts data to inform a training plan, beyond the typical metrics of power output, cadence, and heart rate, and how can cyclists effectively integrate this data to break through performance plateaus and redefine their approach to structured training, considering the algorithm-driven insights and social interactions that Zwift provides, and what are the potential pitfalls or limitations of relying too heavily on this type of data-driven approach to training, and how can cyclists balance the benefits of data analysis with the need for intuition and adaptive decision-making in their training regimens.