This was good but would have been much better if you had not used the big bang theory as the basis for arguing anything. I notice you use it to base your thinking in almost every discussion. Yet it is still just a theory, an aggressively defended theory, which has lots of questions which can't be answered, the biggest one being where did it all start, where is the point of origin relative to all other points? We should be able to triangulate its origin by studying vectors that should exist in all things, if it all came from a single point, and all things are really travelling from that point, but we can't, it looks homogenous from every direction and every point, whilst nothing looks like it is travelling in any way that would be coherent with a point of origin.

If it is not actually true, this would open up all kinds of new possibilities for theories of interstellar travel which are not linear, perhaps using properties of space we are not yet aware of, obscured by the big bang theory, bypassing the thousands of years of travel time that you insist have to apply to space travel.

The big bang theory might well have assisted many things to date, such as the particle studies like you identify, but those things have to be more obvious than the things obstructed, if it was to turn out the big bang theory obstructs anything.