>>212503264Yes, as of the current (movies 1,2,3) version of the Matrix, most people accepted the simulation and very few rejected it, but the number of people that rejected it built up over time, creating a systemic crash. Thus requiring a reboot. Presumably they also needed a reboot to reboot history otherwise people would notice they are permanently living in the late 20th century.
Enter the One, which is a controlled opposition type program, that destabilizes the Matrix but in a controlled fashion, becomes a Messiah to the liberated Humans, and ultimately returns to the Source, reboots the Matrix, and rebuilds Zion with 16 handpicked Humans of his choice.
Basically, they couldn't prevent the people rejecting the Matrix building up over time, so they came up with a reboot mechanism built around a figure who would be controlled opposition. (Guided by the Oracle, which is literally a program of the Matrix).
Things change on this sixth reboot of the Matrix, because the Oracle has grown fond of Humanity, wants peace between Machines and Humans, and nudges Neo into picking the other door.