If we were to properly graph and calculate time, we would draw it as a circle. Time—as well as reality—flows like a large circle, flowing in one, infinite direction, incomprehensible to any mortal. Now, one may wonder, how was such a thing crafted? How do people know?
Well, the reason for this is one simple thing: reincarnation. A circle cannot be graphed or calculated, as it is the only form of infinity that we can truly see, touch, and know. A triangle or a square could theoretically be infinite, but it has angles and vertices that limit the illimitable.
So, a circle is the only true geometric form that could be considered never-ending.
The best part of a circle is its simplicity. Anyone with a brain cell can take a pencil and graph one in one, single-second swipe. In one fell swoop, the boundaries of infinity are finite. The boundless become the bounded. The imponderable can be pondered. In spite of this, it still is, in almost every respect, limitless.
Now, for the aforementioned "reincarnation". Reincarnation is defined by Merriam-Webster as "the idea or belief that people are born again with a different body after death." Ergo, if life was delineated on paper, we would once more graph it as a circle. Hypothetically, if we placed the starting point of a circle on its top point, then when life traveled around the circle, it would only strike the starting point again and enter a loop.
There have been several cases of theorized reincarnation, allow me to elaborate.
On a currently popular note, let's take the case between both George Smith Patton Jr., a famous WWII general who was known for his courageous leadership and battle tactics, and Donald John Trump Sr., an American entrepreneur tycoon who is, as of 2016, running for president. Both of these men held a similar, almost identical face. The two men also greatly spoke out their mind and refused to be "politically correct". Donald Trump was born a single year after Patton's death, and Patton believed in reincarnation. Mister Trump also speaks fondly of Patton every rally and frequently compliments him, trying to find "a new General Patton" to fight ISIS, an Islamic terrorist group.
Thus brings my thoughts to an end. A circle determines reality, both through its limitlessness and rebirthing properties. But questions may still linger; "What about a sphere?" one may ask. "Isn't a sphere infinitely more complex than a dull, dull circle?"
To that I remark that, no matter what is said or noted of a sphere, it is merely a solid, tri-dimensional representation of the base of all existence: a circle. Though spheres are more common, a simple look at them will cause the mind to register a circle, then a sphere. You see, the basis of a sphere, the commonplace object, is a circle, such as one would believe God is the basis of All. Relating to that subject, a circle would be the geometric basis of all.
Therefore, a circle is reality, and a reality is circle. This is not philosophy; this is absolute scientific fact. People may combat me, they may say that a different shape births all or that my thesis is completely ludicrous, but I've created impeccable points that will surely stand the test of time.