Why you can’t trace your family tree to Adam and Eve

Everybody loves genealogy, but we are severely limited in what we can know about our family histories. There are two main reasons for this. First, family records only go back so far. Even the longest family trees can't go back thousands of years. Second, personal genetics testing can only tell you who your closest relatives are. Yes, genetics can tell you what population you came from, but that is a matter of statistics, not documentation. This is not a problem for belief in the Bible. Adam and Eve are still the (sole) ancestors of everyone who has ever lived, it's just that you cannot prove it with what we have available to us today.