Question

please who knows what was before the bigbang and how the life before the bigbang came to be

Answer 1

There are several theories that say that A. There was nothing or B. the universe imploded and this the another cycle of the universe

Answer 2

The concept of the big bang is actually under some scrutiny right now. To start off, I'll say that the common idea of an explosion sending matter flying in all directions into the universe is most likely wrong. A better term would be "The Big Expansion", which is more comparative to inflating a balloon, and all the surface area is the entire area of the universe. It all starts in one condensed spot before rapidly expanding to fill a much larger section. Not to say that is what happened, but it's the best explanation I can give for what the Big Bang really would have been.

Now for what came before the Big Bang, no one knows for sure. Using particle colliders such as the Tevatron and LHC, we have recreated the cosmic gloop (Gluons, Muons, all sorts of primary particles) as it would have been minutes after the bang. We haven't been able to get any closer to the event itself, as the temperature from such a dense and energetic event can't be mimicked with our current technologies. There is the relatively commonly accepted theory of the universe expanding and shrinking in a never ending cycle of big bangs, but that's just one theory.

Another is that the universe will expand so much until it experience what is called a heat death, where every particle in the universe is spread so far apart from each other that no heat or energy is transferred from one to another. At this point, because there is no entropy or energy exchange happening, there's no difference between large and small. When there is no large or small, all matter in the universe could be considered to be spread everywhere, but at the same time located at the exact same point in space. This could lead to another "bang" without the theory of implosion.

There are other theories as well, most of which don't have to do with the big bang though. Currently gaining a lot of ground is Brane theory, which is the theory that there are infinite wavy universes that are just barely out of touch with each other. On rare occasions, two "waves" of separate universes will touch, and all their matter will explode into a new universe which would be considered a new big bang.

As for life, all the essential building blocks for life were available and present the moment the bang happened, but because of the intense pressure and heat, it was all broken down into its constituent building blocks of everything. As it cooled, the building blocks combined into the basic element Hydrogen, which then would have begun combining with different Hydrogen ions until they put together the more complex elements, and eventually proteins and amino acids were formed which are the basic units of life.