So many prominent physicists have argued that the universe may have formed within a vacuum from a virtual particle (either with no energy or without an opposite pair etc...). It’s the classical something from nothing argument. However, could it not be argued that a “vacuum” within our universe still adheres to the laws of physics, as it still contains the various quantum fields within? If the previous statement is correct why do we then assume a true vacuum (or at least a different vacuum) existing beyond the event horizon of the universe operates in the same way (i.e. creating virtual particles). Do we understand the quantium field's effect on virtual particles?