Around the same time as Miescher was tinkering with DNA in Tubingen castle, a middle aged friar-scientist Gregor Mendel was experimenting with inheritance of pea plants. He was the first to define a set of mathematical rules behind inheritance that birthed the field of genetics - a field that lay dormant for a few decades before exploding in the 1900s, and continues to develop to this day. Genetics gives us the tools to reshape the living world with intention and at speed.