[mikeg8]

Designing a product is much different than executing a musical performance because playing guitar on stage contains elements out of your total control like a broken guitar string, amp malfunction etc. Sometimes they miss a note, that's not a mental lapse, it can be a physical disconnect between what their mind is trying to accomplish and what their finger actually does.

A designer has total control over a product before it is released. This article is about the mental pursuit of perfection.

[NathanKP]

A designer does not have total control except in the most ideal of circumstances. In the real world there are deadlines, a budget, the whims of clients to cater to, and investors to impress. It's nice to think that perfection is possible but realistically compromisesl must be made in the real world.

[timerickson]

And you think programming/product design is unaffected by these disconnects?

What if a server crashes? What if Illustrator doesn't draw the exact like the hand performed?

There are physical and technological disconnects in much the same respect as a musical performance.