Between the ages of 0-2 you as a baby used your entire brain capacity. This is documented. At the age of 3 all the brain activity stops and recedes to where an adults is at lower frequency’s (Theta and Alpha waves). This is done from 0-2 years old to get Intuition on the lay of the land of all your future life choices and outcomes.
It’s like walking through Space Mountain first with the lights on then at 2 years old you decide to ride the ride again but this time with the lights off. The roller coaster you chose is the life you’re currently living. You as an all knowing, all loving, all joyous, infinitely caring being is extremely excited all the time in every moment. Every Planck scale unit of Space time. Regardless of your disposition, the volcanic excitement progresses with every moment.
That preemptive walk through of your entire life, was you visiting intuitively all plausible life choices you could make then choosing a path (a roller coaster) that excites you the most and then riding it back into the knowledge explored with coherent infant Joyous intent to expatiate. Every baby is happy because they won the opportunity to experience the structure of their intuitively aggregated vision.
That’s Baby Vision.