semantic versioning

Rich Hickey's keynote on software versioning, arguing that breaking changes are the real problem and that libraries should only grow by providing more and requiring less. It critiques semantic versioning and ties into Clojure spec.

Titus Winters' CppCon 2017 talk argues for C++ and Google's Abseil to be maintained as a live at head language, relying on testing and automated tooling rather than never changing or promising no compatibility. It covers Hyrum's law and the limits of semantic versioning.

Armin Ronacher, creator of Flask, explains how CPython's internals and C API leak into the language's semantics. Using examples like the complexity of the add operation, he shows why Python is hard to optimize or reimplement.

Jan Vitek of Northeastern University gives a meetup talk on the challenges of making the R language run fast. He explains what in R's semantics makes it hard to optimize and to build a JIT compiler for.

Michael Wesch's five-minute video about Web 2.0, showing how the read/write web, XML and user-generated content change how people create and share information.

Peter Norvig, then Director of Research at Google, talks at Startup School 2008 about leveraging large amounts of data and about technical challenges in Google projects such as image search. A central idea is that data can beat hand-written programming.

John Searle's Talk at Google on consciousness and artificial intelligence, hosted by Google's Singularity Network. He presents his philosophy of mind and Chinese room argument that computation is syntactic and cannot capture semantics.

Markus Winand shows how SQL has evolved since SQL-92, comparing old-style solutions to modern features such as window functions and system versioning, and notes that many developers never learn them.

A short clip of Bill Clinton's grand jury testimony in which he says it depends on what the meaning of the word 'is' is. It comes from questioning about Monica Lewinsky.

Python core developer Raymond Hettinger explains how Python's dictionary implementation evolved into the compact, ordered dict in Python 3.6. He uses pictures and small bits of pure Python, and covers key-sharing, compaction and versioning.

Juan Pedro Bolivar Puente explains immutable and persistent data structures in C++ and how they support value semantics. He presents the Immer library, rrb-trees, and a prototype text editor that opens a huge file instantly.

Jon Gjengset's long live-coding stream explains Rust's Pin and Unpin types: why they exist, how they work, and how they connect to futures and async/await. It also covers moving from pre-pinning code to the new model.

Chandler Carruth's CppNow 2013 keynote on how C++ builds complex software from simple emergent structures, and how compilers optimize them through inlining and value semantics.

Kent Overstreet's Linux Foundation talk about writing a filesystem in Rust. Its Q&A segment, where Rust-for-Linux developers ask about interface semantics, became widely cited.

A collection of lightning talks from the Surge 2015 conference on scalable systems, hosted by Geir Magnusson. HN mostly points to one segment, a Bryan Cantrill talk touching on madvise semantics.