Science fiction as a literary and movie genre has always fascinated people. After all, the human species is inherently curious so it's no wonder that we would be wondering about the future, and imagining what life would be then.

While some of the sci-fi ideas you hear now might sound absurd, bear in mind that Ray Bradbury first described the idea of "portable audio" in his book "Fahrenheit 451" in 1953. Now we can listen to music anywhere, thanks to our iPods, smartphones and other smart devices.

Here are some sci-fi imaginings that might soon become a reality:

Supersonic transportation

Thriving, busy countries like Japan and Korea have long been pushing the idea of sleeker and faster trains. But Elon Musk's Hyperloop might just be the supersonic train that everyone is waiting for. This high-speed transportation system is designed to use reduced-pressure tubes wherein pressurized capsules are buffered on an air cushion made by liner induction motors and air compressors. The entrepreneur has stated that pretty soon, a trip from Los Angeles to San Francisco will only take 35 minutes in the Hyperloop.

 Self-driving cars

Back in 1964, Isaac Asimov, the granddaddy of science fiction, predicted that there will be self-driving cars in the future and even described it as "vehicles with 'robot brains'" that can reach a specific destination without the interference of "the slow reflexes of a human driver." Half a century later and Google and other manufacturers are already putting self-driving cars on the road.

 Artificial Friends

One popular sci-fi trope is the artificial friend that ultimately destroys us in the end. But now Artificial Intelligence is being positioned as something or someone that's useful, dependable and maybe even friendly. As a matter of fact, AI has progressed so far and so fast that we can now talk or ask questions to an AI on our phones and it will answer back.

 Space Farm

The sci-fi move "Sunshine" had an interesting vision of what a space farm would look like. In the movie, the bamboo and other plants were the space stations' oxygen source. In the upcoming Matt Damon movie, "The Martian," his character grew potatoes on Mars to survive. Interestingly, the scientists on the International Space Station have successfully cultivated and eaten red romaine lettuce grown in space, proving that space farming is possible in the not so distant future.

 Immortality

The Holy Grail of science fiction; numerous novels and movies have come up with their own vision on how people will be living much, much longer lives in the future. Clones were the answer in "The Island." But for some engineers in Silicon Valley, stopping aging is just a matter of engineering or simply "turning off" the gene that controls aging. There's even a Google-backed laboratory that is searching for a "cure" to aging as we speak.