In the December 2003 issue's cover story, "Does Race Exist?" authors Michael J. Bamshad and Steve E. Olson predicted that new genetic studies of matters related to race will lead to "a much deeper understanding of both our biological nature and our human connectedness." In the same issue, Scientific American's Board of Editors recognized 50 visionaries whose work in research, technology and policy left the world a bit better at the close of the year. While geneticists work on the microscopic explanations of our human connectedness, the particularly international character of the responses to the "Scientific American 50" was heartening macroscopic evidence of our interrelations. The letters come together on the following pages.

This article was originally published with the title Letters.

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