This week we're joined by Ben Craig as we chat about Modules, as was recently adopted into the C++20 draft standard in the meeting at Kona. We talk about how modules interact with build systems, what the deal with macros is, and the new study group set up to advise tools vendors on best practices for supporting modules in an optimal way. We also talk about Ben's ongoing work on moving the Free Standing mode of the standard forwards - and what that really means. To find out what the beneficial crisis is, and why John Lakos might be angry, listen to this episode. Special Guest: Ben Craig.