How, thanks to what's known as the "Butterfly theory" (a random series of unlinked events), can a young woman and a young man meet ?How, thanks to what's known as the "Butterfly theory" (a random series of unlinked events), can a young woman and a young man meet ?How, thanks to what's known as the "Butterfly theory" (a random series of unlinked events), can a young woman and a young man meet ?