“Right now, the way we get hydrogen primarily is from reforming gas.  That's not an ideal source of hydrogen...The other problem is, if it's  for transportation, we don't have a good storage mechanism yet. What  else? The fuel cells aren't there yet, and the distribution  infrastructure isn't there yet. In order to get significant deployment,  you need four significant technological breakthroughs. If you need four  miracles, that's unlikely. Saints only need three miracles.” -- Physics nobel prize winner Steven Chu.