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Transistors are still getting cheaper and cheaper and it only takes some 0.5 million transistors to make a very high quality CPU
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This chip would have little ILP (or parallelism in "innermost loops")
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Thus next generation of processor chips more or less have to have multiple CPU's as gain from ILP limited
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However getting much more speedup than this requires use of "outer loop" or data parallelism.
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This is naturally implemented with threads on chip
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The March of Parallelism: Multiple boards --> Multiple chips on a board --> Multiple CPU's on a chip
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Implies that "outer loop" Parallel Computing gets more and more important in dominant commodity market
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Use of "Outer Loop" parallelism can not (yet) be automated
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