We want to live longer, but what defines "we"? Most agree that the essence of self is the mind which is rooted in the brain, so extending the life of the brain equates to extending life itself. This implies that if brain function can be preserved, the rest of the body is disposable. Aging deteriorates our bodies to a point where they can no longer adequately support the brain. This raises a question: Is it more feasible to repair the damage incurred by aging, or to create an alternative means of sustaining the brain?