Ladies and Gentlemen,
1) I think it is nowadays far easier to become a billionaire than it was a couple of decades ago... And billionaires are much richer than they used to be... This must be a result of globalisation as there is in 21st Century the whole global market for selling products... (source: YouTube)
2) There is a trouble with the German network of hydrogen supply after an accident a few months ago... Actually you need a lot to travel by hydrogen-fuelled cars:
- hydrogen fuel-cell
- hydrogen supply infrastructure and
- hydrogen-fuelled cars