A generation is a whole volume from upline to downline (this includes people with the same and different ranks). The technical working principle of this MLM Plan can be described using the following example
Assume 16 levels, consisting of only 4 generations. The amount you can get will be more in the case of the first generation, and will be getting reduced for the following generations respectively. Let's make it more clear, if you pay 10% of your very first generation, it will only be 6% on the second, 4% on the third generation, and 2% on the fourth