Speaker numbers, or the “numerical strength” of languages, are generally cited as a parameter for measuring “large” or “small” languages. For many experts, e.g. Abram de Swaan (2001: 27–33), they represent a key factor and a significant indicator for the global position of languages. Opportunities for contact with a language increase in proportion with rising speaker numbers. Especially in the case of international contacts, experiencing the “communication potential” of a language (Ch. A.7), can motivate people to learn it, thereby further boosting opportunities for use.