It is not. It is very difficult to really say which one is more difficult. Both in natural gas and hydrogen, we are talking about gaseous fuels, so the challenges are quite similar.
To your question of whether society will be able to invest in both natural gas infrastructure and hydrogen infrastructure, for us, hydrogen has the huge benefit that at the end of the day it's really a clean zero-emission technology. But there are parts of the natural gas infrastructure that exist. But we believe that hydrogen infrastructure is a necessary investment.