The integral of 2/(x-6)^2 from 0 to 8 diverges due to the presence of an asymptote at x=6, which lies within the interval of integration. The integrand is positive throughout the interval, leading to confusion about the integral's value being negative. The discussion highlights the importance of identifying asymptotes when working with rational functions, as they can significantly affect the convergence of integrals. Participants emphasize that overlooking such critical points can lead to incorrect conclusions about the integral's behavior. Understanding the function's domain and its asymptotic characteristics is essential for accurate analysis.