Notice the pattern, he does it to attract the kind of engineers attracted to solving 'unsolvable' problems.
Whether that's a good strategy is up in the air.
He is not 'lying' he is 'envisioning future to motivate engineers'.
Good engineers in specialized fields are really difficult to hire, this might not be apparent to people in the software industry.
He is not 'lying' he is 'envisioning future to motivate engineers'.