The discussion centers on the evolution of languages, particularly comparing the rate of change in English to other languages. It highlights that English evolves more rapidly than many other languages, with Norwegian being cited as an example where historical texts remain understandable over centuries. The conversation touches on the concept of "drift" in language evolution, emphasizing that words can lose meaning through overuse, as seen with slang. The inclusion of new words in dictionaries requires substantial evidence of usage over time, reflecting a selection process influenced by cultural trends. The rapid evolution of English is attributed to modern communication methods, such as the internet and mass media, which facilitate the swift introduction and obsolescence of words. Additionally, the idea of a "lexical clock" is mentioned, suggesting that different languages evolve at varying rates, with English being particularly dynamic due to its global prominence.