This guy is talking his book. The hydrogen market is 180 billion dollars a year and it will grow. Making that hydrogen from methane is not an environmentally sound process. In the future hydrogen will be made from excess intermittent renewables and it will not only be cheaper than hydrogen produced today but dramatically reduce the environmental burden of the hydrogen industry. It's easy to poke holes in the hydrogen story today but all you need to do is project the current growth of solar and wind into the future and the amount of excess generation capacity that entails to understand the case for green hydrogen. In 10 to 20 years, when the sun is out we will have 3x the electricity we need, that excess electricity will be used in part to generate megatons of hydrogen. It's inevitable.