Limits
Does everything have a limit?
In theory, no, because numbers are continuous; but then the theory of infinity arises.
To put it another way, the universe is expanding, but if that's so, it must be expanding into something, which means there's a limit.
Or how about temperature, is there a point where something physically can't get hotter?
We assume all measurements are limitless, but really, they just go further up the line, and lines aren't continuous. Only cycles.
So, is everything limited, or is everything a continuous cycle?