Textbook Group meeting for Parr, Pezzulo, Friston 2022 .

hello everyone it is june 2nd 2022 and we're in week five of textbook group cohort one we're having our second discussion on chapter two and we will uh get right to the questions first just wanted to highlight the math learning group especially for those who are not regularly attending the meetings yet the meetings are on 19 utc on wednesdays but just with everything don't let the synchronous time dissuade you we can set up other synchronous times if people want to co-work and also the resources and the modifications are all asynchronous so we've been doing several things in the math learning group first we've been sharing important resources and categorizing them so if somebody wants to look at a video on something or find a textbook on something or if you come across something useful just add it here and then if you feel like leveraging the resources that you or other people have added then you can categorize it in the table and just add a few pieces of information on it we have a notation table that we'll be building especially as we get into the continuous time active inference we have some questions less so questions about the textbook and more so just cool math questions that people are raising as they're discussing the material and then we're building a math oriented overview so we've gotten up to equation 2.5 in chapter two and this is just sort of like point by point like what are the formalisms doing where are the figures coming into play how are some things related and any and all note taking can be added you can always add it to like unsorted notes or errata and then we can categorize it later but this is how we develop a shared epistemic resource that's useful for everyone and we're going to come to this in the questions so we won't go into detail right now but equation 2.5 is the variational free energy 2.6 is about expected free energy the g and this is a key equation instead of equations so yesterday with um uh blue brock jessica jacob we went through and line by line we went with examples natural language readings questions interpretations and then jakob added um some derivations like how are those three lines in 2.5 related to each other how do we go from the energy and entropy formulation to the complex complexity accuracy formulation so this is the essence of understanding the equations it's an infinite learning journey for everyone so whatever level whether you want to be um catching up to what has been written here or whether you see ways to reorganize it and go beyond and add more connections every single background and level of math familiarity can contribute in this way but we'll come to the more details on 2.5 in the questions any just preliminary thoughts that people would like to share they can raise their hand or write in the chat at any time is there anything that anybody wants to share before we start going through the questions starting with the most upvoted ones that we haven't addressed but we'll just pause for a few seconds tune into the chapter 2 regime of attention upvote any questions that you'd like to see addressed post anything in the chat yes jose yeah i i'd like to ask if there's a recording of the math sessions which you had no no we record stick mergingly with the traces in the notes but and we had this conversation like about whether it should be recorded or etc if there's enough desire we could do something like have some unrecorded and some recorded this session is obviously recorded and rewatchable here and we do many live streams and there is a lot of recorded material and so we want to also hold a space for people who don't want to speak on a recorded version even though everything's recorded in universe and in each other's minds but um yes if there's enough interest in people who want to record sessions we absolutely will do it we also just wanted to make sure that there was a total open math learning space where people wouldn't even have that cross their horizon but we did…