Just yesterday I wrote about Theory, on the theory of human development that I like. Among my books are authors as Gallahue and Papalia.
Maybe now I can use the name SERENDIPITY.
Theories of Human Development and Learning Theories were formulated in sec. XX.
New theories fit into the twenty-first century, as the Connectivism as MOOCA learn.
"Knowledge Can only be volunteered, it can not be conscripted."
"People always know more than They Can Tell, and Can They tell more than write."
"People only know What They Need To Know When They need to know it."