At last, Back to the Future Day is upon us. We’ve all been tallying the predictions in Robert Zemeckis’s science-fiction adventure comedy that came true and the ones that did not. Take, for example, the rejuvenation clinic that Doc visited in Back to the Future II. Today’s Botox treatments can’t compare to the full blood transfusion, hair repair, and spleen and colon replacement that extended Doc’s life by forty years. In the near future, however, life extension could be a reality. But at what cost? In his new book Our Grandchildren Redesigned: Life in the Bioengineered Society of the Near Future, award-winning historian Michael Bess speculates about the enhancements headed our way, beginning in the next half-century. As Bess lays out the benefits and consequences of our bioenhanced future, he starts many of the chapters with fictional vignettes meant to illustrate what life may be like in the near-future. In the book, he asks readers to consider the overarching implications that these advancements may have on our society.