If people work less, especially if engineers, scientists, doctors etc work less, then technological progress will be taking place slower than it is currently. The disappointment of my teenage self with 2030 will then be even greater than that with 2020.
I'm genuinely puzzled by the general anti-work sentiment I perceive on HN (maybe my perception is simply incorrect). I'd expect that most folks here work as engineers or in a similar field that rewards with interesting and meaningful problems and that a substantial fraction had once been sci-fi-imbued teenagers like myself and possibly feel the same disappointment with the pace of technological progress.
I'm very worried that the anti-work movement is (inadvertently?) pushing on the breaks of technological progress :-(