Keep the faith, baby!

...one can argue that if twice the amount of hardware were exploited in a single system, one could expect to obtain four times the performance. The only difficulty is involved in knowing how to exploit this additional hardware. At any point in time it is difficult to foresee how the previous bottlenecks in a sequential computer will be effectively overcome. If it were easy they would not have been left as bottlenecks. It is true by historical example that the successive obstacles have been hurdled, so it is appropriate to quote the Rev. Adam Clayton Powell - "Keep the faith, baby!"
-- Dr. Gene M. Amdahl, Validity of the single processor approach to achieving large scale computing capabilities