I agree. You are correct.
“let there be light. . .” = instantaneous creation = Big Bang.
There are particles in so-called “empty space” that spontaneously pop in and out of existence all the time. Turns out space isn’t really empty at all, but rather seething with quantum energy.
I agree, with a caveat.
In verse 1 Genesis, IMO, describes the Big Bang.
In verse 3 ("let there be light"), the description of the preparation of the Earth for occupancy by Man begins.
Thus, IMO, the Big Bang probably occurred long before the Days of Creation.
YMMV
Yup. That's the way I see it, too.
Most people don't realize that the "Big Bang Theory" (although not so-called at that time) was proposed by a Christian theologian, Georges Lemaitre.
Oh, and the irony?
Lemaitre, the Christian, the theologian, the astronomer-scientist, was soundly ridiculed by the scientific establishment for trying to propose a point in time establishing the creation of the observable universe.
They claimed the universe was perpetual, eternal, and extended backward forever in time. (You see, they hated having to accept a universe that was not eternal, for if it had an origin...it implied an Originator. The river [the universe] cannot be higher than its Source [God], so to speak.)
They coined the term "Big Bang" to ridicule Lemaitre. The term stuck. But it mutated: instead of remaining ridicule, it became accepted, and everyone forgot how that argument began.
Judeo-Christianity had always been proclaiming an origin in time for the universe. Science had proclaimed the opposite.
How quickly people forget.