“A grounded moment of clarity; measured, unsentimental, and humbly profound. No overreach, no hype—just a sober view of what we know, and more importantly, what we don’t. Hiranya Peiris and Brian Greene were quietly extraordinary today: always teachers, always scientists, always illuminating.” Comments like this one are in abundance on our conversation with Hiranya Peiris. Listen to the full conversation on the WSF YouTube channel. #HubbleTension #Cosmology #NeutronStars #WorldScienceFestival #BrianGreene