The way the brain works it is so simple that there must be a simulation of the planet constantly updated with every individual on earth. It is as simple as this: Wal-Mart sales the products people buy most. They record everything to see what people will buy and stocks the store shelve with those items. Wal-Mart has suppliers and the suppliers have suppliers. People change what they do bassed on what their values are. Valued behavior is (Deep Reinforcement Learning). People need to eat, people need toothpaste, people need things! The brain is designed to learn by evolution so it can survive. A cell must get energy to survive. Energy use by one organism denies energy to another. Everything is connected in that way by physics. Everything effects everything and this means we can detect when something changes. It is how we discovered pluto. The planets wobbled in a way not predicted by a 8 planet model. Anomalies have a cause. They are detectable.
Every person on the planet is a node and is detectable by the disturbances caused in the economy. They are predictable based on the resolution of the model used for each node and the interactions with all other contacted nodes. Information about everything on earth should be in the simulation. The errors in the information can be dealt with through error correction. Shannon–Hartley theorem
. In math statistics, a coefficient tells you how correlated two items are. Adding up all coefficients can tell you the weighted probability of the effects an item can have on a person's behavior. A person that sees a soda pop commercial and is thirsty is more likely to buy soda pop. Popcorn commercials make it more likely that people will buy popcorn at varied percentages of the population. Knowing more and more about a person will tell you how they interact with the environment.
As the environment changes and as people change, all this can be predicted with models in simulations. The level of influence things have on each other is can be calculated. The most complex calculation is the human brain. The best way to predict a brain is to recreate it. The brain can be modeled as a directed graph. The graph changes based on reinforcement learning. When people do things on the internet this is detectable and this changes the brain. Some people read Wikipedia all day. Their brain is different from a brain that watches cartoons all day. People that edit Wikipedia influence people that read Wikipedia. People that draw the cartoons influence the people that watch the cartoon. YouTube tries to predict which videos you will watch next and has recommendations on its front page. The brain based on what it wants will choose to do what it does because of those wants and needs. A brain model will act the same way on same input based on the value state of the brain.
On the internet, the hyperconnectivity of everything being capable of connecting to everything else means people are exposed to information that complexifies their brain. Connections are no longer localized but are worldwide. Yet information can still be updated to a brain model with browser history. The more complex a person is the harder they are to predict but this is manageable within a limit. The impossible is still impossible. The exertion of influence is comparable to gravity. Heavier (complex) planets (people) have more gravity (influence). People with greater influence disturb the simulation in what is know as the butterfly effect. This is because their brain is more complex than the model in the simulation. This creates a gross error in the predictive system. Complex items are paid more attention too because of this.
As the resolution and volume of records increase, more and more data will become available to make correlations. This will complexify individuals at an accelerated rate.