From one of the first Bitcoin presentations, at Mises Seminar Australia in 2013[1]. An excerpt of Konrad Graf's "Bitcoin Decrypted Part III: Social theory aspects" covering the challenge of looking at Bitcoin, intersubjective agreeability, and Menger on saleability[2] .

[1] https://mises.org.au/historical-events#2013-Mises-Seminar
[2] Bitcoin Decrypted is an introduction to Bitcoin that spans practical, technical, historical, and social-theory perspectives in an integrated narrative. Please share using the main series page: http://konradsgraf.com/bitcoin-decrypted, https://www.youtube.com/watch?v=MhmxpfA7_Ag&t=824s

(From Youtube)