"I find it a bit weird you doubt the existance of space since it is one of the few physical properties we can directly experience".
Conker the only space you are ever going to experience is the one that is evidently between your ears
Wow, what a weird head you must have for your two ears be joined.
Anyway, dismissals of insults aside,
Rayzor, the beginning of any story is a pretty crucial part and to dismiss it as not relevant when it sets the premise/ context for the story
First off, a theory isn't a story. It is what the evidence supports. Evidence (not the history of the universe, that's secondary) supports the Earth being round. It doesn't a flat earth. And we aren't dismissing anything. We are being intellectually honest and saying "we don't know, we may never know". I'm not a physicist, so I won't research that, but there are lots and lots of scientists trying to get an answer. They may get an answer. They may not.
the pre big bang story is the premise needed for the globe earth floating in space to work
Not necesarilly. The earth could have always been there. Or any of the other competing hypothesis on the universe that were being tested on the earl 20th century. Of all of those, only the Big Bang made testable predictions that ended up being correct (CMB, for example). That is why the Big Bang theory is accepted.
if the globe earth was formed from debris left over from the big bang floating in space
It wasn't. The Earth is made from the rings of the accretion disk of the early Sun. That disk comes from the nebulae "dust" that existed before the sun, presumably from an earlier star. That's the reason we have heavy elements on Earth, btw. First generation accretion disks did not have elements heavier than iron.
how was it made
Nucleosynthesis attempts to answer where did this matter originally came from and how it formed. It all comes down to the massive surge of energy caused by the singularity. The exact mechanisms are still under debate but it clear that Hydrogen, Helium and Lithium were formed in the early instants of the universe. Other heavier elements were created on supernovas, dying stars, and so.
https://en.wikipedia.org/wiki/Nucleosynthesissimple question
Simple questions may have hard answers. What makes magnetite magnetic?
if you don't know and your saying god didn't do it then you must at least have a theory so lets hear it then.
No, we really don't. In fact, it's better we don't. First off, a theory only happens when it is proven to work. You are refering to a hypothesis. We MAY make hypothesis, but they aren't anything more than that. Some people say there is a foaming multiverse. Some people say the universe is cyclical. We don't know. If fact, we may not know. How can we understand the properties of a multiverse? Does it have different laws of physics? It may have, indeed. We may know, we may not. Investigate!