|Karl Ernst von Baer embryology
Eggs and embryos
William Harvey had declared ex ovo omnia meaning “all from eggs” but people thought we and other mammals grew from miniaturized forms present in the male’s sperm until Karl Ernst von Baer found a mammal egg in the dog owned by his department head at the University of Königsberg. Von Baer studied embryos of several species. He argued that homogenous cells become heterogeneous in the process of development. Eventually, nations would collapse social classes would break down communities would crumble families would disintegrate and people would be expected to continue to develop long after they matured.
Inside of me is the child I never have outgrown. Inside that child are my parents. Inside my parents are their childhood selves. These all cause trouble and bestow blessings little tricks to bedevil and little miracles to grace the patterns I retrace.