Does a modern aircraft carrier have to be nuclear-powered?

Does an aircraft carrier have to be nuclear-powered to count as modern?

No. Many modern aircraft carriers are not nuclear-powered, so propulsion type does not define whether a carrier is modern.

Near the close, a viewer's claim that an aircraft carrier counts as modern only if it is nuclear-powered receives a direct answer. Many modern carriers use other forms of propulsion, so nuclear power cannot define the category. A carrier's modernity is separate from its choice of power plant. The exchange warns against defining an entire warship category by one propulsion technology.