On February 25, 2021, Whitehead Institute Director Ruth Lehmann discussed the implications of the convergence of biology and engineering with MIT President Emerita Susan Hockfield, in the first installment of our new series, Director's Dialogues. Hockfield, who was the first life scientist to lead MIT, is the author of the 2019 book, “The Age of Living Machines: How Biology Will Build the Next Technology Revolution.