Note: Some of these PDFs are very large (thousands of pages) and may load very slowly or break in some apps. Adobe Acrobat Reader works fine but Preview doesn't. With Acrobat, you may need to leave the PDF open for a long time (up to a few days) for it to generate the index file that makes searches fast (it makes it automatically in the background).
The Fallible Ideas discussion group is currently active (link) and discusses philosophy and its implications, especially the ideas of Elliot Temple, David Deutsch, Karl Popper and Ayn Rand. The discussion group started in 2013 and this archive goes through 2020.
There's a ton of content here. Don't try to read it straight through. Skip parts that don't interest you, skim for parts you like, or search for keywords to find specific topics you want to learn about. This short video tutorial explains the best way to search. Also, text is frequently repeated because people quote what they're replying to. If you remember what a quote says, you don't have to reread it.
Download (91,243 pages)
The Beginning of Infinity is a book by David Deutsch. The discussion group studied and analyzed its philosophy and implications from 2011 to 2017.
Download (18,493 pages)
The Fabric of Reality (FoR) is a book by David Deutsch about philosophy and science, particularly critical rationalism, evolution, computation and quantum physics. This email discussion archive goes from 2000 through 2018. These discussions now take place at the Fallible Ideas group.
Download (51,699 pages)
Autonomy Respecting Relationships (ARR) applies ideas from Taking Children Seriously, Critical Rationalism and (classical) libreralism to romantic/sexual/dating/marriage type relationships. ARR was started by Sarah Fitz-Claridge and David Deutsch before Elliot Temple took over as owner. This email discussion archive goes from 2000 through 2016. These discussions now take place at the Fallible Ideas group.
Download (8,775 pages)