so what stephen gould describes is this punctuated equilibrium. back, even in the last years, we have had 6 mass 400 million extinction events. the most recent being 65 million years ago, when that meteor hit the earth, and something like 85% of the species on earth disappeared, including the dinosaurs. so then, after we have this mass extinction event, you have a mass speciation. which in that case, it was good for us because mammals filled the space. which the dinosaurs had. it's like what is going on in the corporate world. since 2000, 52% of the fortune 500 companies have disappeared. they have merged -- [speaking simultaneously] cory: i started checking, i could not believe that just since 2000, 50% have gone away. but it is amazing. some have gone away through -- the enrons and worldcoms, because of fraud. some of them had massive mergers, taking away people, businesses in combat. -- businesses like compaq. tom: hewlett-packard or maybe ibm is next, who knows. but then you have what you talk about everyday on the show, is this mass speciatio