Let's say the Cookie Monster wanted to make six million batches of brownies. Assume that it takes a total of 1 hour per batch of brownies, and that 15 ovens would produce 15 batches per hour, 6,000,000 batches would require 400,000 hours of “make” time which is approximately 45.7 YEARS, and since the cookie monster only has his ovens running for 5 years, only about a tenth of the 6,000,000 batches would be made.