Einstein confirmou esses princípios com as equações de Lorentz. Ao aplicá-las segundo estes conceitos, a mecânica resultante tem várias propriedades interessantes: Quando as velocidades dos objetos considerados são muito menores que a velocidade da luz, as leis resultantes são as descritas por Newton; [2]

Hanlon's razor is an adage or rule of thumb that states "never attribute to malice that which is adequately explained by stupidity. " Known in several other forms, it is a philosophical razor that suggests a way of eliminating unlikely explanations for human behavior. It is probably named after Robert J. Hanlon, who submitted the statement to Murphy's Law Book Two (1980).