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@@ -5,13 +5,11 @@ GitHub Arctic Code Vault: Tech Tree
 
 What follows, which we call the Tech Tree, is a selection of works intended to describe how the world makes and uses software today, as well as an overview of how computers work and the foundational technologies required to make and use computers. The purpose of the GitHub Archive Program is to preserve open source software for future generations. This implies also preserving the knowledge of other technologies on which open-source software runs, along with a depiction of the open-source movement which brought this software into being.
 
-In addition to this technical documentation, we have also included a selection of artistic, cultural, and historical works, to help describe the overall cultural context in which this archive was created, and a series of dictionaries, to aid translation into several of the world&#39;s most widespread other languages.
-
 This initial version of the Tech Tree will consist almost entirely of copies of pre-existing works, none of which were written for an unknown audience a long way into the future. As such it is not so much a guide as a collection of resources that we hope will be historically interesting and/or useful. We have tried to strike a balance between abstract/theoretical and concrete/practical work, and to provide at least an overview of the entire technical stack on which modern software engineering rests.
 
-Please note that this document is currently a loose &quot;wish list&quot; of works that we may like to include, which we are making public for the purpose of actively soliciting further suggestions and input, rather than a finalized register of selected works. Note also that the prospect of copying works onto microfilm in a human-readable form implies both potential copyright issues and the practical consideration of acquiring a copyable digital version of the work in question. Certain publishers (Packt, O&#39;Reilly, Springer, and Wiley) have indicated they are happy to work with us, while the status for most other publishers and copyright holders remains indeterminate.
+In addition to this technical documentation, we have also included a selection of artistic, cultural, and historical works, to help describe the overall cultural context in which this archive was created. A data dump of an entire 2020 snapshot of Wikipedia in the archive's five primary languages, along with a snapshot of Stack Overflow and sundry other smaller data collections, is also stored alongside the works itemized below.
 
-The proposed Tech Tree is loosely divided into the following thirteen sections:
+The current iteration of the Tech Tree is loosely divided into the following thirteen sections:
 
 1. [_Fundamentals of computing and the Internet:_](#fundamentals-of-computing-and-the-internet) the essentials of how computers work, and, at least as important to today&#39;s world, how they are connected together into a single planetary network which includes most of the computers on Earth.
 2. [_Algorithms and data structures:_](#algorithms-and-data-structures) processes, sets of rules, and methods of arranging data to solve common categories of problems in efficient ways. Metaphorically, algorithms are the intelligence in a software program, and data structures are its storage.
@@ -27,7 +25,7 @@ The proposed Tech Tree is loosely divided into the following thirteen sections:
 12. [_Fiction, culture, and history:_](#fiction-culture-and-history) human histories and changing human cultures, mostly through the lens of celebrated fictional narratives written over the last 150 years.
 13. [_Cultural context:_](#cultural-context) information about humanity at the time the Tech Tree was created; in particular, a snapshot of Wikipedia, a collectively generated repository of all sorts of information about our world. Due to Wikipedia&#39;s enormous size, this section is provided as encoded data, like the rest of the archive, rather than as visual/readable pages.
 
-The first seven sections are devoted to software, the purpose and content of the GitHub Arctic Code Vault, and its uses and applications. The next five sections describe the technologies required to construct computers on which software might run. The remaining three are intended to illustrate the human context in which these technologies have been developed, the stories the cultures of our era told, the languages in which we told them, and the factual background and descriptions of the world in which we lived.
+The first seven sections are devoted to software, the purpose and content of the GitHub Arctic Code Vault, and its uses and applications. The next four sections describe the technologies required to construct computers on which software might run. The remaining two are intended to illustrate the human context in which these technologies have been developed, the stories the cultures of our era told, the languages in which we told them, and the factual background and descriptions of the world in which we lived.
 
 The Tech Tree is part of the much larger GitHub Arctic Code Vault. As such, it also includes, as an appendix, visual copies of the Guide to the GitHub Code Vault, along with an index of the archive&#39;s fifteen thousand most significant code repositories, including brief descriptions and locations within the archive.