Sufficiently advanced incompetence is indistinguishable from malice

"Any sufficiently advanced incompetence is indistinguishable from malice" is an aphorism that parallels Clarke's third law, "Any sufficiently advanced technology is indistinguishable from magic", and provides a cautionary counter to Hanlon's razor, which asserts that malice should never be assumed when stupidity is sufficient.

RationalWiki attributes the aphorism to J. Porter Clark, but does not provide any sources for this.

Notes

• hat-tip: Diane Duane
• Woozle's Rule of Conspiracy #1: Never assume incompetence when someone stands to gain from an action. (from this post)