Big Data vs. HPC/Supercomputing

There's been a lot of articles about what is "Big Data" and how does it compare to traditional Supercomputing and High Performance Computing.  I thought about it, and devolved it into a simple mathematical statement.

In Supercomputing / HPC

Computation Time >> IO Time

and in Big Data

IO Time >> Computation Time

The architecture of the hardware, the networking solutions, the software you use, how you design your software, etc. etc. is centered around this simple statement.