←  the questions

How did the universe begin?

What the church teaches

In the beginning God created the heavens and the earth (the earth first, light before the sun, the cosmos young and finished in days), and a beginning like that could only have been caused by a Creator.

What the evidence shows

The universe did have a beginning, about 13.8 billion years ago, and we can still detect its afterglow. But the order, the age, and “a beginning needs God” are all wrong: light came first as physics, the earth came late, and “it began, therefore my God” is a leap the evidence never makes.

The afterglow we can still detect

The Big Bang is not a metaphor or a guess; it left a receipt. In 1965 two physicists picked up a faint hum of microwaves coming from every direction in the sky, the cooled-down glow of the moment the young universe first turned transparent, around 13.8 billion years ago. We have since mapped that glow in extraordinary detail. Galaxies are still rushing apart, exactly as if everything began packed together and expanding. Run the film backward and it converges on a hot, dense start.

The order is backwards

Genesis gives a sequence, and it isn’t the one the universe records. Scripture has the earth made first, with light and “day and night” before there is any sun. Cosmology has it the other way: light and the first elements long before any star; stars and galaxies forming across billions of years; our sun and earth condensing late, some nine billion years in, the earth lit by a sun that was already burning. You cannot have evening and morning before the thing that makes them.

What “the beginning” is doing for the apologist

Here the argument usually pivots: “everything that begins to exist has a cause; the universe began to exist; therefore God.” It sounds airtight. It isn’t. Every cause we have ever observed is a rearrangement of stuff that already existed, inside time. We have never once watched anything “begin to exist” from nothing, so we have no rule saying it must be caused, much less caused by a mind. At the very edge where time itself begins, the everyday intuitions about “before” and “cause” are exactly what we have no right to trust.

And even granting every premise, the conclusion smuggles in everything that matters. A first cause (if there was one) gets you, at most, to “something.” It does not get you to a person, to a mind, to a God who cares what you eat or whom you love, much less to one specific deity out of the thousands humans have named. The entire religion is quietly stapled onto the end of a sentence the physics never finished.

The same move, turned around

Watch the trap in “everything needs a cause, so the universe needs God.” If everything truly needs a cause, then so does God, and you’ve explained nothing, only added one more unexplained thing and agreed to stop asking. If something can simply exist without a cause, then the honest candidate is the universe we can actually detect, not an invisible mind we’re instructed to assume.

A beginning is not a signature

That the universe had a beginning is one of the great findings of science, and it was worked out by people following the evidence, some of them believers, none of them needing Genesis to get there. A beginning is a fact about physics. Reading a particular god into it is a decision laid on top afterward, and the cosmos gives no hint of which one, or any.

You were told the universe’s beginning points to your God. It points to a beginning. The name was added later.

What you’ll hear back

The evidence above is the case. This is the part that comes after it: the replies you’ll get when you actually say any of this out loud, and what each one is worth once you look at it.

You’ll hearThe constants of physics sit in the narrow range that allows life. Tweak one and there are no stars, no chemistry, no us. That precision is the fingerprint of a designer.

Why it doesn’t hold

That some constants permit life only in a narrow band is taken seriously; the jump to a designer is where it breaks. The famous tiny odds assume the constants could have been otherwise and that we can assign probabilities to the alternatives, and we have no theory that lets us do either, so those numbers aren’t actually grounded. Any observers will of course find themselves in the rare conditions that allow observers. And if the universe was built for life, it’s a strange build: almost all of it is lethal vacuum and radiation. A cosmos barely able to permit life, and overwhelmingly hostile to it, is what blind physics predicts, not what a designer aiming at life would make.

Check it yourselfRead the Stanford Encyclopedia of Philosophy’s entry on fine-tuning: it treats this as a genuinely open dispute, including why the “probability” of the constants may not be definable at all.

You’ll hearNothing comes from nothing. The universe is something, so it can’t have come from nothing. There must be an eternal cause, and that is God.

Why it doesn’t hold

The physics usually waved at here doesn’t describe nothing. The quantum vacuum is a sea of fields obeying laws, which is very much something, so it is no counterexample, and the believer is right to say so. But the rule cuts both ways. If nothing can ever come from nothing, that bars God from making a universe out of nothing too, and you’re left pleading a special exception. And “every effect needs a prior cause” is an intuition drawn from everyday life; at the very beginning of time, where “before” may not even apply, there is no reason to trust it. Saying “God” doesn’t answer the question in any case. It only renames it: why is there God rather than nothing?

You’ll hearThe Big Bang was first proposed by a Catholic priest, Georges Lemaître. Even the science points back to a moment of divine creation.

Why it doesn’t hold

Who first proposed an idea has nothing to do with whether it is true; the Big Bang stands on the redshift of galaxies and the microwave background no matter the discoverer’s religion. And Lemaître is the worst possible witness for this point. He insisted his theory carried no religious meaning and warned against tying it to Genesis. When Pope Pius XII announced in 1951 that the Big Bang confirmed creation, Lemaître was alarmed and pressed him, successfully, to stop saying it. The one man best placed to make this argument spent his effort shutting it down.

Check it yourselfLook up Lemaître and Pius XII in 1951: the priest who fathered the theory talked the Pope out of calling it proof of creation.

You’ll hearThe universe is running down toward heat death, its entropy always rising. Something running down must have been wound up, and the winder is God.

Why it doesn’t hold

The second law tells you the universe began in an ordered, low-entropy state and is dispersing. It does not tell you who or what set it up; that part is added on. Why the early universe started so ordered is a real, unsolved question in cosmology, and it has live natural candidates, from inflation to cyclic models. “We don’t have the final answer yet” licenses more work, not a god. Dropping one in here only names the gap instead of filling it, and it brings back the very problem the argument began with: what wound up God?

Check it yourselfRead Sean Carroll’s “Arrow of Time” FAQ: it lays out why the ordered early universe is an open physics problem with natural candidate answers, and why “running down” implies nothing supernatural.

Watch

Did the Universe Begin? (the physicist Sean Carroll, on why a first moment of time needs no external cause to bring it about (Closer To Truth))

Sources

←  the questions
Need support?