How about a processor that rakes up to 5GHZ? would this be impossible
When Intel designed the P4 architecture they stated it was designed to scale up to 10Ghz (With process shrinks and minor optimizations). Whilst that's always going to be optimistic, 5Ghz should be no problem in a few years.
then the future will be two at the same time
Well Intel's hyperthreading is kind of a step in that direction - not 2 actual CPUs of course, but the CPU has 2 execution units. I do agree that multiple cores will be a sensible step. The only issue of course is that writing a multi-threaded application that properly utilizes both(or however many) processors is <i>much</i> more difficult than writing for just one CPU.
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