Because science is based on what we can observe, measure and test.
Thus it is based on the laws of physics.
A place where there are no laws if physics, no laws of relativaty, nothing that we ever know as science is a place we cant identify its nature.
And since we also cant simulate anything like it, nor will it ever happen again in the age of humanity.
Then it is the point beyond reach.
Everything we know about the big bang comes from reversing the state of evolution of physical laws in the universe and basically its status.
But the more you go back the more those laws break down because simply, the minute you go beyond the time they formed to existence, you no longer can test them.
In short the only way to find out is to literally leave the universe. But in one hand we cant as its impossible. And on the other hand.....well also impossible.
So yea you can only science the current, you cant science whats outside of the universe because to do so you have to exist in it and study it all over like there was no science ever before.
Why do things have to have beginnings, and cause-effect? Particularly when we are talking about a time (for lack of a better word) before time and space? Who is to say that the universe just hasn't been big-banging and big-crunching repeatedly infinitely many times in the past? Why not? You are assuming these things.
Time is a force or a dimension, both words are considered valid scientifically for it. It came to be along with other forces in the universe after the big bang.
Before the big bang there was no time. Because "time" is something in our universe.
The tide goes in, the tide goes out. You can't explain that, anasawad.
Yes because it doesn't make sense. What does it mean that tides goes in and out.
Tides are stationary. We move in and out of them not the other way around.