The discussion revolves around the challenges and economic viability of electric propulsion in aviation and ferry systems, as well as the skepticism surrounding the profitability of electric scooters. Key points include the significantly higher energy density of kerosene compared to lithium batteries (50 times), suggesting limited range for electric aircraft without major technological breakthroughs. Some commenters express optimism about niche markets for electric boats and hybrid systems. Furthermore, they point to the potential for electric cars to thrive economically despite the skepticism of electric planes. New advances in battery technology and efficiencies in operations are seen as opportunities that could reshape the landscape, even influencing regulations in favor of electric solutions. Some commenters also reflect on the transition towards renewable energy in transportation, indicating ongoing advancements in this sector, despite current limitations.