Meaningful numbers? There are billion of human beings, and then a fraction of these people with internet connection, and fraction that speak of the same langua

Meaningful numbers? There are billion of human beings, and then a fraction of these people with internet connection, and fraction that speak of the same language. The internet allow people to organize communities that would otherwise be impossible on a local level, giving to rise to possibly hundred of thousand or million of people who believe that the Earth is flat. Is that 'meaningful' amount of people? I like to think it is enough to form movements, even if they can never get anywhere.