What happens when a guy uses a simulator to mining Electroneum?
A super computer with a powerful CPU will be extremely effective.
There's no point on doing that in the first place.
Everyone can mine Electroneum using Powerful PCs, from Standard Desktop to Super Computers as long as the OS supports the new miner or the full node.
If you're thinking of powerful CPUs overshadowing the mobile miners,
it's kinda happened roughtly a week ago.
Cryptonight ASICs was released to the public and ETN's total hashrate had rose to a phenomenal level in which made the regular PC and Mobile miners obsolete.
But that's resolved for now after the (
too late) change in POW Algorithm.