An international team led by Prof. Bob van der Zwaan quantified the 'hydrogen economy' role in sustainability with a focus on decarbonizing the European economy by 2050. They emphasize renewable-based electrification as the primary cost-efficient decarbonization route, with a 60% share in final energy consumption. Direct hydrogen use is seen at a maximum of 10%, highlighting its critical role in specific sectors like heavy industry and transportation. The study challenges the perception of hydrogen as the ultimate solution for climate change, suggesting its role as an alternative clean fuel rather than the primary driver of decarbonization. The research underlines the necessity of 'sector coupling' in energy transition modeling, considering the interconnectedness of economic sectors. Future projections are expected to include hydrogen's enabling role in sustainability transitions, potentially doubling its share in the economy. The study calls for continued development of the hydrogen economy to realize its potential in various applications, such as synthetic kerosene production and addressing renewable electricity intermittency. Overall, the sentiment towards hydrogen is positive, highlighting its importance as a complementary element in achieving sustainable energy systems.