My reasoning for why there must be something beyond a finite universe.
By my definition finite refers to something which has form as opposed to formless(infinite).
A formless "thing" with any aspect of its formlessness which can be conceived of as having form(x) is not formless but finite.
Any conceivable form(x) is necessarily bounded by that form(x).
This finite form may have qualities

which are unbounded, however that "unboundedness" is also a quality of said form(x) and can only have the appearance of unboundedness.
If this quality

of a form(x)were truly unbounded the quality(form) constituting (x) would necessarily be unbounded aswell, as it is the same "thing".
Hence x and y being two sides of the same coin(form(x)) cannot be bounded(finite) and unbounded(infinite) at the same time.
If

were unbounded(infinite), (x would have to be unbounded(infinite) as well hence formless.
Both x and y would be formless(infinite).
Basically I am saying there can be no truly unbounded finite thing, such a thing only has the appearance of being unbounded.
Hence a finite but unbounded universe is actually bounded, while conceivably being unbounded.
If so it is an object with boundaries, if one object why not two or three or four?
We're back to the turtles again.