A couple themes have been coming up throughout the show. Sophie thinks words mean things. Amos is a vulgar Marxist, and thinks that all cultural change is always and everywhere the result of technological change. They tell each other why their wrong. Listen all the way through for the surprise ending!

Links:

• Ludwig Wittgenstein - Wikipedia — Ludwig Josef Johann Wittgenstein (/ˈvɪtɡənˌstaɪn/;[6] German: [ˈvɪtgənˌʃtaɪn]; 26 April 1889 – 29 April 1951) was an Austrian-British philosopher who worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language.