When I finished watching Blade Runner for the third time this semester, I noticed they got some things right about the future that we already have and some things that we haven't came close to yet.
The flying cars for instance... The furthest we've gone is electric cars and it will take a long time before we have flying ones. Also, I believe they got the talking trough a screen ( like Skype, FaceTime) right. There were several scenes throughout the movie where this happened. Also, the variety of languages throughout LA came true. The amount of Ads in the city looks just like today's date. Artificial intelligence advancements have came true, and soon we'll see robots doing housework.