Michelangelo found David
inside a rock. Megabyte was looking for a
solid state disk.
The original text for the SSD caption read
"Megabyte
went through his Michelangelo phase. "Somewhere
in that lump of rock is a solid state disk..."
The
barrel is the original metaphor we used for storage. By making it out of
solid rock the idea was to convey related concepts such as "chips"
and "solid".