I was wondering: is there a consensus in the palaeontological community regarding David Raup and Jack Sepkoski's claims to a periodicity of mass extinctions? Even if Nemesis has been pretty much refuted, I haven't found any definitive disproof of the supposed signal in the noise. Some say absolutely not, some say certainly. I don't know who to believe. And I'm making a video on the topic, so I kinda need to draw a conclusion. Any info would be helpful. Thanks!