The discussion centers on the validity of functions dependent solely on time in physics, with a focus on displacement. One participant argues that displacement cannot be a function of time alone, asserting that it must include velocity, expressed as x=f(V,t)=Vt. However, others counter that displacement can indeed be a function of time, exemplified by equations like x=10m/s * t, which yield position based on time. The conversation highlights a misunderstanding of the mathematical concept of functions in relation to physical applications. Ultimately, the debate emphasizes the need for clarity in distinguishing between mathematical definitions and their physical interpretations.