questions i want answered by the finale

I know they’re going to leave big threads open for the next season but i really want the following answered - obviously cold harbor (is cold harbor something extra specific? or just the last of the torture rooms that needs to be completed)
- what was oIrving up to ?!
- why gemma severed (was it willingly?)
- the actual mechanism behind the connection between refinement and the testing rooms
- the significance of “scary numbers”
- how are helly irving and dylan able to refine the testing floor without an emotional connection to gemma (or are they connected somehow?) - why the continued emphasis on pregnancy? is severance some vehicle for forced impregnation/giving birth?
- the goat department

I really hope these are answered by the finale.. I need answers !!