I didn't watch the video, but one thing caught my eye:
Dr. Rex explains how he started his journey to Blockchain world in 1991
Is this accurate? Did the blockchain world even exist back then (in 1991)? I can see from his biography that he has 25 years of experience in the infocomm world, but this doesn't mean that he has so much experience in blockchain technology.
In any case, I wouldn't take these prediction too seriously either.
He said that, "he started his journey to blockchain in 1991" but he didn't said that it is already out online, especially that we doesn't have internet back than 1991. I think blockchain that time is still discovering until year 2010 came, the data streaming of it.