As technology develops at an ever more rapid pace, it can seem that ethics struggles to keep up with it. While science and technology advance by building on discoveries of the past, virtue and moral knowledge must be cultivated afresh in every individual and each generation.

This is where Brian Green comes in. As director of technology ethics at the Markkula Center for Applied Ethics, his areas of research are many, ranging from transhumanism and artificial intelligence, to catastrophic risk and the ethics of outer space. This diverse array of interests all pivot on the intersection between technology and humanity.

In this rerun episode, Brian and Gretchen dive into many areas of tech ethics that both impact our present lives and promise to shape our future. From immediate ethical dilemmas like self-driving car crashes and responsible tech development, to long-view issues like the establishment of extra-terrestrial colonies and the achievement of artificial general intelligence, they reflect on a large range of themes that can affect human lives for both good and ill. Listen in as they discuss old and forgotten tools for answering ethical questions, the Christian commission to work miracles, which human qualities can’t be programmed into machines, and more. Together they ask, should our predictions about technology and ethics be dire, or hopeful? What choices are we making now that will shape coming generations?

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