As usual your total lack of any grasp of science whatsoever is showing. Science is about building models, making predictions using them, and seeing if they match observations and experiments. The BB model does very well in that regard.
Building beliefs onto beliefs is nothing like that. So called science is not science, in case you missed that. So called science is fable mongering and belief based. Real science deals with reality and actual present nature forces and laws etc.
Now if only science would actually be honest and seek truth, we might have gotten somewhere.
An example of wondrous possibilities that science may have missed is easy to find.
There is a mysterious magnetic field anomaly apparently.
"Unexplained anomaly weakening Earth’s magnetic field is EVOLVING and SPLITTING in two, warn scientists
...The unexplained force, referred to as the South Atlantic Anomaly, is an area of reduced magnetic intensity that extends from South America to southwest Africa.
...the latest readings from the agency’s Data, Innovation and Science Cluster show a second anomaly is forming off West Africa. Researchers still don’t understand the risks associated with this more recent development."
Unexplained anomaly weakening Earth’s magnetic field is EVOLVING and SPLITTING in two, warn scientists
Knowing real history and timing and predictions of the future from the bible, one could look at this as a potentially interesting development. Why?
The magnetic reversals were rapid and occurred at the time when the rapid separation of continents occurred. (science doesn't know this and goes by beliefs on old ages)
In the future, it is likely that the continents will again rapidly move, this time back together, in a time when all islands move away and all mountains are levelled to the ground and all tall buildings fall. It seems logical to assume that when that time comes rapid magnetic reversals will also occur. So, using real fact and knowledge, the anomaly gets interesting.
Real science is interesting!
You're forever claiming that time or whatever may have been different in the past or is different at large distances,
No. Not on earth. We know what time was like here, at least to a large degree. In deep space even now, we do NOT. What was likely different on EARTH in the far past was nature. Forces, laws etc.
but none of that explains how we can build a model that makes successful predictions by assuming that it's the same.
That depends on what you think success is.
When cosmology failed to predict the rings and etc from sn1987a, was that success? When they do expect things due to predictions, and it turns out wrong, is that success? When a pile of beliefs are added together, and none of them can stand on their own, any prediction that results is a joke. Even if some demon inspired some people to realize that any creation event such as the BB would leave a residual temperature, they forget that so would creation by God!