Is There a Difference Between Essential Complexity and Accidental Complexity?

Pure logic programming is the approach of doing nothing more than making statements about the problem and desired solutions. They're dividing things into essential complexity and accidental complexity. The ideal world is where you don't have to worry about performance or thread pools, it's all gone. Realization must be done with no view to execution whatsoever. We are just describing it in an unambiguous way.