The "COVID-19's doubling time was ≈3 days" figure was the output of an epidemiological model, based on solid and empirically-validated theory, based on hundreds of years of observations of diseases. "AI capabilities' doubling time seems to be about 7 months" is based on meaningless benchmarks, corporate marketing copy, and subjective reports contradicted by observational evidence of the same events. There's no compelling reason to believe that any of this is real, and plenty of reason to believe it's largely fraudulent. (Models from 2, 3, 4 years ago based on the "it's fraud" concept are still showing high predictive power today, whereas the models of the "capabilities forecasters" have been repeatedly adjusted.)