To start with, a few thoughts on things in the film that have happened. Marty McFly’s self-drying jacket exists. There’s a ‘hydrophobic’ nano-fabric that repels water. I’ve got a pair of board (surf) shorts that do this myself. The hover-cam that features in the film similarly exists. Military drones and UAVs obviously, although hobbyists are also using helicopter drones fitted with video cameras. There are flying cars too (Xplorair PX200 & Terrafugia TFX), although these are not the most practical of everyday inventions.
As for my 3 future predictions for 2045 they are featured in today’s Telegraph online.
BTW, if you are reading this in Australia today is already tomorrow.