What's in a language? Dr Laurie Tratt breaks it down by creating a brand new programming language by writing an interpreter in a few lines of code.

Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://janest.co/computerphile

More from Laurie: https://tratt.net/laurie/

Dr Laurence Tratt is programmer and the Shopify / Royal Academy of Engineering Research Chair in Language Engineering in the Department of Informatics at King’s College London

This video was filmed and edited by Sean Riley.

Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com