I hadn't heard it expressed that way.
Both the definition you gave and the one I gave is problematic because it is difficult to quantify simplicity. And no two theories are equally likely.
That fractal image I posted could be considered just as simple as a circle because they are both created with simple formulas.
But look at this from Wikipedia: "In its simplest form, Occam's Razor states that one should make no more assumptions than needed. "
William of Ockham (1285-1349)
>>He did say `Pluralitas non est ponenda sine necessitate' (plurality shouldn't be posited without necessity).<<
http://www.csse.monash.edu.au/~lloyd/tildeImages/People/Ockham/
DK