There's no doubt that building one type of vessel would result in economies of scale. We took it into account in our report. When we included the economies of scale associated with building these ships, we arrived at a cost estimate of $77 billion. If we had a hybrid fleet, we would lose construction-related economies of scale, and we would arrive at the cost of a hybrid fleet, as mentioned in the report.
We did not consider the operating and maintenance costs associated with this fleet of vessels, regardless of the design type chosen. We focused on development and acquisition costs.