the symmetry between generation gaps is a constant in the flow of ever changing ancestors occupying time as ancestrally arrived since inception to be perpetually balancing as adapting to space currently alive now.
Imagine if you will 4 parallel ways genetics worked from 16 great great grandparents equally continues with mom and dad adding thei 16's great great grandchildren one at a time in plain sight.
the balance point between those 5 parallel events is 4 grandparents between 8 great grandparents and two creating the random conception to each specific great great grandchild added within the species here now.
Ideologies don't change the sequence of any ancestral lineage of any species native to this atmosphere. yet every human reality believes life isn't genetically being eternally separated now when it has before societal evolution began and after extinction of this species eliminating itself from the atmosphere.
Here is my geometric chart.
https://i.postimg.cc/RhCb73Hf/Picture-279.jpg