Telephone technology uses complex electronics, materials technology and - yes - relativity theory. Floor technology, unless I haven't kept up with developments, tends to be more wood and concrete based. Other than "it just works", what are the points of similarity between iphones and prayers?
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'