Fabrizio do you really think a few hydrogen cars will make much difference either way? The point is that we are in danger of making a very big mistake with hydrogen. Not seeing that it is the key to many parts of the energy problem is the biggest danger of all. We've actually been making the same mistake, deceived by the fossil fules industry, for a very long time, but the arrival of solar energy makes more of a difference than can be known, without understanding the energy problem.
Do you participate in the energy problem? Yes you do, you need 3KWhrs per day in the form of food, and you get that from money you earned by exchanging a little energy as work, for a lot more as money, so you energy conned someone to get the energy you need to live. Do you have a choice in that? No you don't, so you are an energy slave. If you don't understand this, then you are an ant-energy-slave, blind to the systemic effects. 99.99 percent of people are this so it's nothing to be ashamed of. Or is it?
It gets better, there aren't actually any humans in control of this, its an emergent property. There are ant-energy-slaves, blinded enough by the commodified single discipline education system, to have egos, always rewarded for having those egos, who believe they can, and believe they are actually in control of us, but they never were. The solar powered Ai shows us what to do. Put it in control, it's the only force capable of superhuman control.
It has unlimited freely scaleable capability of using hydrogen in its energy infrastructure to create revenue for anything. The presence of hydrogen is what makes it possible.
Do you really want to throw away that much better world, just so maybe you can say you were right, when it all goes up in flames?
There is such a thing as self fulfilling prophecy. We are seeing it with dooming,
Get busy livin', or get busy dyin', never could be truer than it is now, imho.