I listed my own number of ancestors in each generation in my post Can you document all names back 10 generations? last night. The intent of the post was to raise the question posed by Tamura Jones comment, and to provide my own research as an example, and state my impression that there are few, if any, completed 10-generation charts (all 1,023 names).
My intent was not to imply that "my tree is bigger than yours" or that researchers who are still working on great-grandparents or great-greats are inferior. The fact is that each of us has a unique ancestry, and some ancestors are much harder to find than others. I am often genea-smacked by the efforts of genealogy colleagues and friends that have struggled mightily to go back five and six generations because of the difficulty of the research - African-American, Native-American, Jewish, and Eastern European ancestries come to mind.
Martin Hollick sent an URL to his blog discussing my post - see http://mhollick.typepad.com/slovakyankee/2010/03/documenting-back-10-generations.html . Thank you, Martin.
Tamura Jones sent me a picture of a 12-generation chart from his private research database that is really full of names - only a few small "holes" in the first 10 generations on the chart, starting in the eighth generation. He gave me permission to show it (it was resized so that names are not clearly visible) - see below:
A correspondent asked if all of my "documented ancestors" are fully sourced. Nope, not even close. I admit to being a name-collector in my early research years, and I'm still trying to fixing that with primary information and original sources. Once in awhile, I find a very helpful resource for one of my ancestral families that leads me to records that proves or disproves, to my satisfaction, my ancestral connection. I include those records in my database. Or eliminate the ancestral connection if the records don't prove the connection to my satisfaction.
I showed a 10-generation family tree chart of my father's ancestry in 2006 - see below:
UPDATED 11 a.m. - added the Tamura Jones chart and comments.