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The last decade of the twentieth century and the first two decades of the twenty-first have witnessed a dramatic transformation of our society in lifestyle and human connectivity. In perusing my writings spanning this quarter century, I encountered both a lecture presented at the 1995 Marconi Society Symposium as well as my most recent, the 2019 Armstrong Lecture delivered at Columbia University. The two previously unpublished texts are provided in Appendices A and B.

Impact of Digital Wireless: Views from Two Ends of a Dramatic Transformation