For a counterpoint, we can look to the Stoics who want us to focus on the present rather than dwell on the past:
"For although in regard of that which is already past there may be some inequality, yet that time which is now present and in being, is equal unto all men. And that being it which we part with whensoever we die, it doth manifestly appear, that it can be but a moment of time, that we then part with. For as for that which is either past or to come, a man cannot be said properly to part with it. For how should a man part with that which he hath not? ... that life which any the longest liver, or the shortest liver parts with, is for length and duration the very same, for that only which is present, is that, which either of them can lose, as being that only which they have; for that which he hath not, no man can truly be said to lose.
"XorNot" is a title inhabited by many different people over time: the person that held that title this time last year is not you, and the "XorNot" of today will give way tomorrow to yet another person. Each can only be properly considered in the context of the situations they inherited and those left for their successors.
Another, more modern translation, from the Oxford world classics edition by Robin Hard:
14. Even if you were to live for three thousand years or ten times as long, you should still remember this, that no one loses any life other than the one that he is living, nor does he live any life other than the one that he loses, so the shortest life and the longest amount to the same. For the present is equal for all, and what is passing must be equal also, so what can be lost is shown to be nothing more than a moment; and no one could lose either the past or the future, for how could he be deprived of what he does not possess? So always bear in mind these two points: firstly that all things are alike in nature from all eternity and recur in cycles, and it therefore makes no difference whether one sees the same spectacle for a hundred years or two hundred or for time everlasting; and secondly that the longest-lived and the earliest to die suffer an equal loss; for it is solely of the present moment that each will be deprived, if it is really the case that this is all he has and a person cannot lose what he does not have.
"For although in regard of that which is already past there may be some inequality, yet that time which is now present and in being, is equal unto all men. And that being it which we part with whensoever we die, it doth manifestly appear, that it can be but a moment of time, that we then part with. For as for that which is either past or to come, a man cannot be said properly to part with it. For how should a man part with that which he hath not? ... that life which any the longest liver, or the shortest liver parts with, is for length and duration the very same, for that only which is present, is that, which either of them can lose, as being that only which they have; for that which he hath not, no man can truly be said to lose.
-- Marcus Aurelius, http://gutenberg.org/files/2680/2680-h/2680-h.htm#link2H_4_0...
"XorNot" is a title inhabited by many different people over time: the person that held that title this time last year is not you, and the "XorNot" of today will give way tomorrow to yet another person. Each can only be properly considered in the context of the situations they inherited and those left for their successors.