[Enosh]

One thing you haven't mentioned is Einstein.

Namely, the further out you look, the further back in time you look.

Hence, any ancient "local" events would by now be far too distributed to be detectable.

[Robert A Cook PE]

But the COBE satellite covered the entire "horizon" looking for 1/100,000 variations in the background radiation from the big bang. That radiation IS (in conventional theory) to be the edge of the big bang, so we have looked at the way back in time.

And, if these superN were at that point in time, their effect in changing the "strings" that created the galaxies would have to be accounted for (somehow) in the current 3rd and 4th dimensional string theories, right?

Sure, the remnants could be the "missing" 90% of our matter that is needed by the math. But, where is this missing 90% of the universe's matter, if they are close enough to have ejected matter that drifted into our sun's influence?