I thought of this for the first time the other day while watching part of a History Channel documentary series on Netflix. After considering it, I felt rather foolish for never having thought of it before--and as such, I'm sure it's been contemplated before, but this was the first time I ever thought of it myself. Suppose that at some point in the future it does become possible to travel back in time and alter history. Bearing that in mind, what if the time continuum we are familiar with, the continuum of our past history, and the continuum we perceive now has already been altered by a time traveler from the future? What if our continuum is not, and has not been for some time, natural? What if it has been interfered with? What if it is being interfered with as we speak? Whose agenda has manipulated us as a species? As a nation? Whose agenda manipulates us now? Further than that, if this does become possible at some point, how many times has it been employed already? Does it necessarily create a new parallel continuum each time it takes place? Which iteration are we living in? I realize this is just a bunch of 'what if' scenarios with no real answers, but I find it bewildering to ponder. For a more philosophical examination: is traveling back in time and altering history, and thus a particular continuum, the most massive and extreme form of coercion possible? Regardless of the intent, is altering history/a continuum even potentially moral? Or is it necessarily immoral?