Spirit: History and Evolution - Joel de Guzman & Hartmut Kaiser [ BoostCon 2010 ]

From a channel Lumen includes in full: C++Now is the expert-track C++ conference (from the Boost community): long, deep talks by committee members and library authors on metaprogramming, concurrency, memory safety and performance, often running 90 minutes.

A 67-minute video from CppNow's catalogue; the title names its topic.

Video by CppNow, played through YouTube's embedded player.