Naturally, I wasn't suggesting an augmentation to your biological life, but rather that to access to such a power would grant you access to greater technology. Also, your 4-dimensional extension would be changed, given the right conditions, such that you could, technically, not cease to be, but rather be in several times at once.
Since we're assuming immortality, I'm willing to say that we've got access to an unrestricted form of time travel.
Since we're assuming immortality, I'm willing to say that we've got access to an unrestricted form of time travel.