About compressing time, in regards to half life: is that not coming from the need to accelerate the process? It does not follow that appearance is appearance and the mechanics. Are you trying to say appearance needs for time to be compressed? Appearance and a mature universe and solar system comes that way. It does not need to go through all the mechanics.
Buy if that is the case, the “big bang” covered the tremendous energy required to compress time and obtain your half lives. Then God seperated the light and darkness in the “cooling down” period, then everything started back as a normal functioning universe.
That is only explaining a method that humans demand needed to happen. Why hold God to do things like we need them to be done?
Aristotle gave the logic of the need for a single creator, ie God. Why he bothered to put that in writing, do we even know? Up until that time, it seems clear, that humans treated a cosmology from a Flood perspective, ie coming out of an ocean of water, because no one has a clue about the time before the Flood. Add to that, the ANE cosmology thought the gods split the earth in half creating the sun and moon phenomenon. The sun and moon being that last of the gods in the pantheon. The Greeks made it all mundane and placed a counsel of gods “upstairs” who could have sex with humans. Sounds familiar to what Moses claimed, that the sons of God had offspring with the daughters of Adam’s genealogical record. Except Moses said that applies to the condition before the Flood. There is no basis for a pantheon of gods to carry to the new earth, unless the book of Revelation answers that line of thought.
It is the fact that God destroyed the planet at the time of Noah that allows any YEC thought processes. What happened before Noah, we do not know. But it does not seem the Flood would be the point time is compressed causing the energy from half lives to melt the earth. We do not even have a way to see what the earth was like between Adam and Noah.