Futurists predicted that the tech of today would surround us with flying cars, robot maids, and teleportation. While some of these predictions are still sci-fi, others like mobile video calls, virtual reality, and even A.I. and quantum computers are quickly becoming a part of daily life. In season two, Brownlee unravels these retro tech promises and sees just how close we've come in 2021 and the direction revolutionary tech is headed next.

• Marques Brownlee