The phraseology "require more energy than exists in the universe" seems to imply that once energy has been used to accomplish a function it is thereafter lost. But that is not how it works as I understand it.
Well I was thinking more in line of one needing at least a few atoms within a storage system just to map the location of a separate single atom. Now multiply that by all the atoms in the universe times every fraction of a second in time and you'd quickly run out of storage space, or energy, since you'd need more than exists in the entire universe.
That is of course unless the existence of the universe as a whole was procedural and could be described mathematically with formulas that describe where all elementary particles were, are and will be.