A question humans cannot answer:

"How can something exist that did not begin?" The answer is something beyond my knowledge, or the knowledge of any I know. It is paradoxical, yet there is an answer. These things do exist, but we cannot comprehend how. It can be imagined as a line of length -∞ to length ∞. We can see that the line is there, but cannot comprehend how the line is able to be of that length, since ∞ does not have a known numerical value, and it therefore has no beginning or end to it. If a value for ∞ is found, an end is found to the line, and it is no longer relative to the given question, since this value can (logically) be flipped for -∞, as well, marking a beginning and end of the line.

If you are referring to the line example, it may actually be inaccurate to the question, looking back at it, since a line only has two dimensions. Anything that would represent this situation has over-infinite length in its fourth dimension, since as far as I know (this may or may not be inaccurate), the only way for something to exist without beginning is to exist before time. This is what truly becomes ununderstandable for me. We have only experienced anything in three dimensions, and of finite length. Perhaps one could dig into this further. Since infinity is not a known length, it is impossible to find any value above it without finding its value first, nor do I know any of the properties of 4D matter.

Schoool hasn’t started yet jk😂😂

I discovered something that leads to a failure to find any such answer. Our minds, when we try to explain how anything can exist, appear to trace back time (or the processes within) to try and find what something could begin as, and from there, can process how such a thing came into being by reversing it. Of course, if we try to do something like this, it will inevitably fall flat, since you would have to trace back beyond known time, but also, we struggle to comprehend how something could exist without beginning. Knowing this, if you stop trying to comprehend the beginning of such a thing's existance, it becomes clear that it simply exists. If it did not begin, it does not have a reference in time. This may be the answer I was searching for, but it seems incomplete. Perhaps an understanding of the workings of time itself are needed to further pursue the answer. 

42

This ^

In retrospect, the answer was slightly obvious: For something to exist without beginning, it would have to exist outside the bounds of time. When something begins, it is a reference point in time from which its existance is anchored from until the period when it ends. When one thing ends, it also gives way to the beginning of something else. If it did not begin, it has no reference pojnt within time itself. It may indeed be that the title ended up becoming clickbait: a human has answered the question.

Of course, as people have commented so far, this isn't nearly the answer to life, the universe, and everything. While clearly the answer isn't really 42, this is searching for the answers to all questions at once, asked and unasked. Some we already know, some are beyond the bounds of our knowledge as of this era. Perhaps our knowledgebase will continue to grow as we make new discoveries, but I doubt we will ever become all-knowing. Of course, it doesn't mean we should not search for more answers and gather more knowledge. Wisdom is valuable; it allows us to accomplish feats we could only dream of, and to use what we know wisely.

What an unexpected twist!

Not really...