Perfect is...

One toe short of perfection...

Perfection is boring. By definition it implies that a thing is done. It is finished. It cannot be improved on. Hence, there is no room for growth, for improvement.

Wabi-sabi is a Japanese concept based on the concept 'nothing lasts, nothing is finished and nothing is perfect'. It's a spiritual concept in which imperfection, decay and disorder are embraced to the extent that they underscore the beauty of an object.

"It celebrates cracks and crevices and all the other marks that time, weather, and loving use leave behind" to quote from an unknown source.

Perhaps it is because in contemplating the imperfection we must contemplate the whole of the object in which it is embedded which in turn leads us to find all that is right with the object.