Churak's Theory of Everything
First it will be declared that the entity that created this universe exists in a realm completely removed from our universe or any such parallel universes.
This entity is incomprehensible for any human brain to understand the nature of it's existance and manner of how it functions, or put simply, the environment it exist within.
For example, we have no explanation how mass and energy can come into existence, unless it came from something.
But prior to the Big Bang, lets say the very first one, there was nothing.
So how can stuff exist when initially there was nothing?
How can something come from nothing, or how can nothing produce something.
What created the first stuff?
I do speculate that the current expanding universe will reverse into that point, called the Big Crunch, that will becomes the next Big Bang, and so goes on this cycle.
The following explains why I believe extraterrestrial beings do exist in the universe.
The only way to explain how "something can come from nothing" is to say that there is something separate from our universe where space, time, matter and energy has no meaning, but something else is there for which our brains can not envision, and the question how "something can come from nothing" is not a question, as it has no meaning there.
So now from this I can explain our universe and life outside Earth.
Initially, prior to the start of our, or the very first universe, that point for the Big Bang, did not exist.
Initially there was nothing, never any point of stuff to make happen that Big Bang event.
But some entity existed, that which we can not conceive of, and there it decided to initiate the first Big Bang by putting stuff into that point that exploded and created space_time followed by the energy that filled it.
First space is created having an unlimited expanse.
The existence of space brought with it, contained within space, time, which then allowed energy to fill the space.
DNA - Deoxyribonucleic acid is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
In my explanation DNA was introduced into the universe, not from the contents of the Big Bang, but later by that unknowable entity as seeds put onto all the existing planets and moons where the conditions for life was currently or eventually possible.
To me the complexity of DNA, with it huge number of possibilities for different life forms, is something that could not happen by random, but was engineered and constructed by that mysterious entity to see what would happen by chance in all those random environments that came about from the Big Bang that formed planets and moons that could allow DNA to propagate into life forms.
I read someplace that it takes more than an intelligent brain to have that species develop technology as we have today, as without arms and hands with fingers, and a way to mobilize and move things, the tools to make tools to make advance machines can not be accomplished. This is why I'm sure all intelligent species in the universe that accomplish technological advances have humanoid structures like legs, feet, arms, hands, fingers, head with eyes and mouth for speaking communication.
Imagine a human with web hands and I'll guess they never could manipulate or create the tools to create something like a computer no matter if their intelligent far surpassed ours.