Straight copying is not a robust way to scale: any vulnerability found in a single copy will be found in all of them, so you end up with a very brittle system. As far as copying goes, you want a smarter scheme than that, where e.g. only truly useful information is transferred and the rest is rebuilt around that. The breadth of easy information access current computers allow is good for the really naive approaches we currently use, but probably overkill relative to more efficient schemes.