1. Video calling: there are video calling scenes in many science fiction movies, such as Star Trek and Blade Runner. Nowadays, people can make real-time video calls through smartphones, computers and other devices.
2. Self-driving cars: There are scenes of self-driving cars in many sci-fi movies, such as The Matrix, Contact in Space and Time, and so on. Now, the self-driving car technology has been greatly developed, and some models can realize partially self-driving.
3. Artificial Intelligence: In sci-fi movies, there are often various forms of artificial intelligence, such as the computer H.A.L. 9000 in Star Trek, and EVE and WALL-E in Robotech.Nowadays, AI technology has been widely used in the fields of voice assistants, natural language processing, and image recognition.
But there are also technologies that appear in sci-fi movies that have yet to be realized, some of which include:
1. Light-speed sailing: In many sci-fi movies, space ships can fly at the speed of light. Currently, we have not found a technology that can achieve such speeds.
2. Time travel: Time travel is a common theme in many science fiction movies. Currently, we have not found any method that can achieve time travel.
3. Universal Healing: In some science fiction movies, people can realize universal healing through high-tech means. At present, although medical technology has made great progress, there is still no way to cure all diseases and injuries.