Yes, the Birth Death rate is something to consider...maybe 2 kids is too little, so lets say for sake of this math challenge that the original 23 are this 11 men, 11 women, 1 female child. Birth rate 4 kids per couple. Death rate, everybody dies at 70 years old. People freed from matrix, say...23 a month. Anyway my point is, is that the Matrix is 1000's of years old...maybe even more. Anybody got the mad math skillz to figure it out???