Who's who ?

[Vladimir Jovic]

How else? Current science does not let to overclock the processor
easily to 6 GHz (if 3.3 or what you got is not sufficient). Therefore
what remains is to add processors/cores. You can not exploit the
processing power of system with multiple cores however without
concurrency. Or can you? If you need a link then google for "high
performance computing" or something.

Ok, you (and he) are thinking about multi core/CPU system, but I thought
about one core/CPU system. Now what James said makes sense.