Can you explain what Param represents in the context of the AMPL cryptocurrency? Is it a key feature or just a technical term? Understanding its role is crucial for investors and traders alike to grasp the intricacies of this digital asset. How does Param factor into the overall functioning of the AMPL system? Is it adjustable or fixed, and how does it impact the value and stability of AMPL tokens? Can you provide a concise yet comprehensive overview of Param's significance in the AMPL ecosystem?