How can you get super powers? Let's examine the possibilities. First off, you could be born with them, and have them from birth. You'd grow up each day learning more and more about how to control and best use your special abilities.
You could also be born with latent, or dormant super powers. Then at some point, you wake up one day and discover that you've got a special talent that very few others have.
Maybe you just haven't found your power yet. Maybe every one has a power or possibly even powers that they are born with, and can only be unlocked during puberty when the body undergoes immense changes, or during life or death situations, when the bodies natural fight or flight responces activate. Now let's assume that none of that is true. Then perhaps with advanced technology, you could manipulate your genetic code, and gain powers that way.
You could also manipulate your physical body using technology. Maybe you replace some parts with robotic counterparts that are far more powerful, like stronger arms and legs, or a heart that can pump enough blood to make you run faster and longer than everyone else.
Nanotechnology could be used to tweak existing muscles and tissues. You could rework all your muscle fibers and bones, making them far denser and more powerful than normal, giving you super strength.
Technology could also theoretically be used to alter your mental capacities, increasing your intelligence, and perhaps giving you telepathic, precognitive, or telekinetic abilities.
Intensely stressful situations, like combat in a war, could as well trigger a change in you whereby you suddenly gain control over your five senses, and can see, smell, touch, taste, and hear with far more clarity, accuracy, and detail than before. And now some possibilities with out assuming everyone has them, or that technology could give us powers.
Humanity could reach a moment of transcendence, and everyone could wake up to a psychic network, a collective, in which we are all telepathic, and can draw upon the collective consciousness at any moment in time. You'd have instant access to all current human knowledge, making you and everyone else effectively omniscient.
You could go to a school for psychic training and learn to unlock secret powers that we all possess.
You could devote your life to spiritual pursuits, and at some point if you're lucky achieve an ascended state of being, at which point various super powers come into your possession.
There could be a limit put on humanity that will be lifted in the near future, at which point a select few people will be able to fly, read minds, etc. After that, the rest of humanity will discover that abilities exist.