Cris and Matt talk about Vector databases, lexical vs. semantic search (and relevance ranking), and upcoming FileMaker conferences in Europe. Matt waxes poetic about JSON and a technique for storing certain types of data in a single, flexible JSON field, rather than having individual fields for everything. 
Cris recommends a book called 'AI for Good' by Juan M. Lavista Ferres,  William B. Weeks,  and Brad Smith. (Matt checked, and it's not yet available on Audible or Libby)