So, how does one predict what's about to happen when there's no Psychic Powers in the setting? With probability and statistics, that's how. From the results of the next sports game to the fate of the human race, anything can be predicted, as long as we have all the background data and include it in the right equations. You don't think so? Then behold The Big Board! Or even the Room Full of Crazy! There are all the equations! Oh, sure they look like gibberish for the untrained eye, but the math is there. The future can be predicted with 100% accuracy, except for that little detail we did not consider, and which ruined the whole equation.
It's a fairly common theme in science fiction, but somewhat more impractical in Real Life, there have been several attempts like game theory, and of course basic statistics and probability in regards to random events, but there's always randomness that prevents any prediction from being correct 100% of the time.
- Shiro from No Game No Life is a Child Prodigy capable of high level calculations. While her skills are useful in alot of the games she and Sora compete together in, one of her greatest uses for it is in the realm of FPS games. After acquiring enough information, she can predict the movement and actions of her opponents to such an extent that to others she seems like she can see into the future. It's only when her opponents cheat that her calculations fail.
- The Nasu Verse has two types of prescience, as detailed in the epilogue of Kara no Kyoukai, one of which is essentially an ability to intuitively predict the most likely outcome of a particular chain of events based on all the minuscule clues and probabilities known by the "seer". Mikiya explains that this ability is not that different from how meteorologists predict weather.
- Fantastic Four: The Mad Thinker lives for this trope. That's basically his thing: use complex maths to predict the results of his plans. That, and make nigh-unstoppable robots without mind.
- Civil War: Iron Man thinks that superheroes should be forced to work under government oversight; Captain America thinks that they should still be allowed to do what they think is right. All the other characters in the Marvel Universe have to take sides. Reed Richards, from the Fantastic Four, supports Iron Man: his maths prove that lack of oversight would lead to several world-destroying disasters. This is explored even further in the Fantastic Four's own comic, where Richards and the Mad Thinker compare notes. The Mad Thinker grants that Richards' equations are far more advanced than those he could come up with, but, as he had done himself in the past, Richards committed the grave mistake of ignoring the "human factor". By being so focused on his equations, he ignored the Invisible Woman's viewpoint, who then left him to join Cap's resistance.
- In Incredible Hulk, The Incredible Hercules, and Totally Awesome Hulk, this is stated to be the "power/talent" of Amadeus Cho, the smartest kid in the world. He possesses a "hypermind" capable of making a seemingly endless number of calculations in his head within seconds, predicting what's going to happen.. Visually, it appears as numbers and formulas floating in mid-air. Later, we learn that it runs in the family as his sister Maddie can do the same thing. In Chaos War, this was Played With, as Cho and other super-intelligent characters (such as Galactus) accept that the Big Bad Mikaboshi is unbeatable, but Hercules refuses to accept it.
- Adrian Veidt of Watchmen is the "World's Smartest Man" and he's able to use his vast intellect to predict and anticipate changes in politics, society, culture, human psychology and by smart timing, such as publicly revealing his secret identity at a time of widespread distrust in superheroism, he is able to cultivate an image of respectability and goodwill that he uses to build an immensely successful corporation, whose resources he then taps into to unleash his devastating master-plan to save the world. He also anticipates that the strained international tensions will cause a baby boom from the accompanying increased sexualization of the media and advises his company to invest in child care products.
- In the Sherlock Holmes films starring Robert Downey, Jr. Holmes has this as his trademark skill in combat situations. Before combat even begins, he can predict how a battle would play out to the exact mark thanks to him calculating the situation before hand. In his confrontation with Moriarty at the end of the second film, it's revealed that Moriarty has the same ability.
- π: Max Renn is a reclusive mathematician/numerologist who is trying to find the universal constant that will allow him to predict every pattern in nature. Specifically, a group of Wall Street bankers are funding his research to help them predict the stock market with perfect accuracy.
- Isaac Asimov:
- All the Troubles of the World: The supercomputer Multivac is given full data on the entire Earth, including all of its citizens. It uses this information to predict the future actions of human beings; nearly eliminating crime, war, and poverty. There's proposals to expand the predictive analysis to include medical issues. Recently it has been given the responsibility to predict all crimes in advance so they can be prevented from occurring.
- Foundation: Hari Seldon invents a whole field of science called "psychohistory" to predict the future of galactic civilization. He prophesizes the fall of the Empire, and establishes the Foundation to shorten the impending dark age. The system is later revealed to have a Logical Weakness in that a powerful foreign leader with sufficiently nonstandard psychology throws the future off track; luckily there was a backup plan. In fact, the backup plan covers, to varying degrees, all the logical weaknesses, including that being a matter of probabilities it only takes a few highly improbable but not impossible events to throw things off course — and the Seldon Plan covers a millennium, so it is more likely than not that such events would happen eventually. That's why the backup is a secret organization, equipped with Psychic Powers and psychohistory, continually working behind the scenes to manipulate things to keep the Plan to track, or push it back on course if that fails.
- Franchise: Multivac has almost every datapoint it needs to predict how the citizens of America would vote in the election, and selects Muller to fill in the gaps of its predictive abilities, thereby negating the need for anyone to vote at all.
- Subverted in Robert Silverberg's The Stochastic Man: the title character is a stochastics expert who runs an agency that predicts the future (specifically, business risks and stock exchange rates) based on hard maths—but gives it up after meeting his mentor who can actually see the future and teaches him the same.
- 1610: A Sundial in a Grave by Mary Gentle revolves around a form of mathematics that can predict future actions, with such precision that a mathematician with no sword-wielding aptitude is capable of winning a fight by predicting it several months in advance and then practicing the sequence of moves that will result in victory. One character turns out to be manipulating events because he's foreseen a catastrophe four hundred years in the future that can only be averted if he starts laying the groundwork now.
- An early villain in Alphas had an intuitive understanding of cause and effect and could influence events, such as rolling a water bottle onto the road to create a massive traffic accident. Unfortunately he couldn't understand that other people did things without calculating the end results, and thought they were all plotting against him.
- Agents of S.H.I.E.L.D.: In the episode "Spacetime" we meet an Inhuman who can make people see someone's death in the future just by touching them. Those futures can not be avoided (but they can be twisted). Leopold Fitz, resident genius, explains that predictions are mathematically possible.
- Star Trek: Deep Space Nine: In "Statistical Probabilities", a group of genetically-enhanced savants are given access to secret war-related documents. They predict that the Dominion War will cost billions of lives, and to prevent such a loss of life they recommend that the Federation immediately surrender. Naturally, the Federation leaders do not accept the recommendation. They also predict that ultimately the Dominion will then be overthrown by a rebellion starting on Earth... but utterly fail to predict that the Dominion also predicted this and are planning to wipe out the planet (which the audience found out a few episodes previous in "Sacrifice of Angels".
- NUMB3RS has Charlie use math to predict crimes before they can happen for the FBI in Los Angeles.
- The premise of Person of Interest is that a computer extrapolates from surveillance data who will be a threat to national security, and as a side effect predicts other violent crimes.
- In The Cape, Tracey Jerrod (AKA Dice) has an innate understanding of quantum physics, allowing her to foresee the future to a high degree. Her father worked to map her brain in order to be able to duplicate the ability technologically. His research was stolen by Peter Fleming (AKA Chess) and, eventually, released as T.R.A.C.E., a computer program that can predict things like the stock market with incredible accuracy. Neither Dice nor T.R.A.C.E. is infallible, though.
- In Eclipse Phase the psi-slight Predictive Boost temporarily amps up the Bayesian probability machine features of the brain.
- The Flake playbook in Monster of the Week has a special move called "Connect the Dots", which lets them figure out, among other things, where and when then next crucial plot event will take place from the minor in-game clues (out-of-character, this allows their player to flat-out ask the Game Master to reveal future plot details).
- In Fallout 4, the Railroad has P.A.M., the Predictive Analytics Machine, a pre-war US spy-ops computer loaded into an Assaultron frame. She is a secondary Quest Giver for the Railroad faction.
- In S.S.D.D one of the Oracle's functions was to calculate and predict upcoming disasters. Unfortunately it needed experimental data. Briefly, he tries teaching Tessa some at a casino, just for the laughs.
- Among the many abilities granted to the Number Man in Worm is the ability to predict the future through probability, which he can use in combat to predict the moves of his enemies before they make them.
- When Bender overclocks himself in Futurama, he develops the ability to predict every possible outcome. He uses this ability to stop Mom's killbots, to predict when ceiling fans would fall on Zoidberg, and write down a detailed account of the future of Fry and Leela's relationship.
- In Avengers, Assemble! Iron Man has a software that scans the battles and battle scenarios, and predicts the best strategy to defeat the enemy, along with the probability of success. They get in a big problem when Red Skull, who steals an armour in the first episode, finally finds this software and learns how to use it.
- Action Man (2000) gave Alex Mann this ability. When his adrenaline reached a peak point, he could calculate what thing to do to defuse a situation (which usually involved an extreme sports stunt of some kind). This ability also gave him an uncontrollable type of precognition. Coach Grey, the man responsible for Alex's ability, has a computer that can do the same on a larger scale.