The topic of "Licensing" is discussed in the context of the podcast episodes, particularly in relation to the licensing models and implications for open source software and artificial intelligence.

In the Linux episode, the licensing models of Linux, including the GNU General Public License (GPL) and its impact on distribution and modification, are explored.

The Podcasting 2.0 episode delves into the ongoing discussions around the value-for-value license for remote items, highlighting the importance of establishing fair and sustainable licensing practices.

The Practical AI episode focuses on the role of licensing in the open source AI ecosystem, discussing the understanding of different licensing types and levels of openness for weights, training data, and output.