How does the power to change the size of the Supreme Court impact the balance of judicial authority and decision-making?

The power to change the size of the Supreme Court can impact the balance of judicial authority and decision-making by potentially shifting the ideological composition of the Court. Increasing or decreasing the number of justices can influence the Court's rulings and the direction of its decisions, as new appointments can alter the prevailing ideologies and perspectives on legal issues. This can ultimately impact the balance of power within the Court and shape the outcomes of important cases.