That's because the Time Reckoner is a hint to a designer's intentional influence: a prophecy. The Time Reckoner is my symbolic art-working form of the biblical portrayal, or a sort of depiction of the Anti-Christ. I believe that there's theoretically a science fictional plot-twist involved that the Anti-Christ is bound to be that of a Time Traveler, bent to return to the past and become Jesus Christ's opponent as spoken about from within the Bible in accordance to the Anti-Christ becoming of Jesus' sworn opponent.
This Portfolio is not exactly meant to spook anyone, but to symbolize the concept in its own way, or theoretically, a means to help people. Ultimately, the Anti-Christ's arrival is said to bring about War, or bring about the World's End Times, but as for traveling back into the past, it is simply in my mind that this 'Time Traveler;' enraged of hatred, sharing no remorse to souls around him, will go back into the past, take-on Jesus, and build and Empire in his own name, stating to those around him that he is a 'true God' in nature. Thus, the Time Reckoner is a compelling character that theorizes this possibility, just as past affects future, if you know your Time Travel persuasive well-enough. Though I am a Christian, this is simply an artistic point-of-view to how I see things, which generically, I like to look at things in parallel perspectives.