BBCNEWS HARDtalk October 20, 2021 23:35:00
Well, hang on. i mean, i read the reports of this high—profile moment where you invited the press to see this amazing monster truck that was now running on hydrogen. as i understand it, it could only run for 20 minutes on hydrogen. yeah, it's called proof of concept. i mean, did you think about the first flight? it's not like these. i mean, that's proof of concept — it worked. it's no use to you. 20 minutes of truck operation is of no use to you. it might take you many, many more years. judging about the future of the battery in electric cars... the fuel tank, stephen, was about this size,...