power efficiency

Chuck Moore, inventor of Forth, presents GreenArrays' 144-core asynchronous chip at Strange Loop 2013. He explains how idle cores draw almost no power and how tight code minimizes energy use.

In this TEDxBerlin talk, environmental activist Michael Shellenberger explains why he changed from opposing nuclear power to advocating it, after looking at the evidence on Chernobyl, Fukushima and air pollution.

A short SIGBOVIK 2017 presentation by Tom Wildenhain showing that PowerPoint animations are Turing complete, with a working Turing machine built in slides. The talk is delivered deadpan as a serious research result.

Shriram Krishnamurthi's PWLConf 2019 talk on the formal notion of expressive power of programming languages, based on Felleisen's paper. It explains how to tell when a feature adds power by whether emulating it requires global rewriting.

A QCon London 2020 talk by Tesla engineers on the architecture of Tesla's Virtual Power Plant. It covers aggregating distributed batteries and solar with vertically integrated hardware and software across cloud and edge.

Alan Kay's 2015 talk on the power of simplicity, arguing that systems become simpler by building on more sophisticated fundamental building blocks and that big research horizons drove invention at Xerox PARC. It ranges across computing, tools and scaling software.

Michael Shellenberger argues in a TEDx talk that solar and wind need huge amounts of land and mining, and says nuclear power is a better path to protecting both the climate and nature.

Dave Ackley gives a high-level introduction to robust-first computing, which prioritizes robustness over efficiency in computer architecture. A sorting demo illustrates the idea.

Bobby Powers presents Mesh, a drop-in malloc replacement that eliminates memory fragmentation in unmodified C/C++ programs by compacting memory. The talk covers how it works despite C's fixed object addresses, and its benefits for programs like Redis.

James Hamilton of AWS gives a Velocity 2010 keynote on datacenter infrastructure innovation, focused on power and cooling costs and a breakdown of where datacenter spending goes.

Tom Murphy (suckerpinch) shows 'reverse emulation', using a Raspberry Pi in an NES cartridge to give an unmodified NES new abilities such as playing SNES games. The video starts in a strange way and gets stranger.

Justice Antonin Scalia's opening statement at a 2011 Senate Judiciary hearing on the role of judges. He argues that the Constitution's separation of powers is what protects liberty, and that gridlock is by design.

Chandler Carruth's CppCon 2014 talk on writing fast C++, explaining why data structure choice and memory layout matter more than clever algorithms. It covers why standard containers like unordered_map perform poorly on modern CPUs.

Vim creator Bram Moolenaar's 2007 Google Tech Talk on habits for efficient text editing. He explains how to spot repetition and inefficiency, then use editor features to fix it.

Eduardo Briceno gives a TEDx talk on mindset, contrasting fixed and growth views of ability. He argues that believing abilities can be developed encourages challenge, deliberate practice and grit.

Urban Bruhin, LibrePCB's main author, introduces the open-source EDA tool at FOSDEM 2018. He explains why he started it and how its library concepts differ from KiCAD.

Devine Lu Linvega of Hundred Rabbits talks about low-power, offline computing, esoteric languages and the Uxn virtual machine, informed by years of sailing the Pacific. The talk frames computing sustainability through a permaculture lens.

Alexander Nix of Cambridge Analytica presents at the 2016 Concordia Summit on using big data, psychographic profiling and behavioral microtargeting in elections.

Robert Bussard's 2006 Google Tech Talk on inertial electrostatic confinement fusion, a compact approach he argued could be cheap and clean, using boron-hydrogen fuel without neutron radiation. It runs about 93 minutes and covers the physics, funding history and his proposed development path.

Susan Crawford talks at Harvard's Berkman Klein Center about her book Captive Audience. She argues that deregulation and consolidation left a few telecom companies in control of American internet access, so people pay too much for slow service.

Timothy Baldridge presents Pixie, a lightweight Lisp built on RPython, at Strange Loop 2015. It covers C interop, immutable data structures, fast startup and async-by-default IO.

Alan Kay's TED talk on teaching ideas, in which he argues the world is not what it seems and shows children learning through programming and building their own lessons with Etoys/Squeak.

Amy Cuddy's TED talk arguing that adopting expansive postures, or power posing, can boost feelings of confidence and affect success. A note on the video points to the later reproducibility debate over its findings.

A 2006 Google Tech Talk by Robert Bussard on inertial electrostatic confinement (polywell) fusion as a cheap, clean alternative to conventional thermonuclear reactors. He argues it could be made viable with modest funding.

A Clojure/conj 2014 talk by Lucas Cavalcanti and Edward Wible on four uses of Datomic. They cover HTTP caching, audit trails, mobile database sync and authorization, drawing on the immutable transaction log.

Bill Gates' TED2010 talk on the energy future, arguing for zero global carbon emissions by 2050 and the need for energy miracles. He explains why he is backing a different type of nuclear reactor.

An AWS re:Invent 2018 session diving into the Nitro system, a set of hardware offload and security building blocks behind next-generation EC2 instances. It covers the design and architecture and how Nitro enables new instance types.

Retired submarine captain David Marquet explains, with drawings, how he turned the USS Santa Fe around by treating his crew as leaders rather than followers. It summarizes the ideas of his book Turn the Ship Around.

In a TEDGlobal talk, Raffaello D'Andrea demonstrates quadcopters that play catch, balance, learn and coordinate, using algorithms that treat them like athletes. It includes Kinect-controlled quads.

David Heinemeier Hansson explains what he learned about indoor air quality after his new house made his family sick. He covers CO2, VOCs, off-gassing, HVAC and ventilation, and cognitive effects, presented at a Basecamp meetup.

MIT's Donald Sadoway presents the liquid metal battery as a design for grid-scale stationary electricity storage, at an Imperial College London event in 2018. He covers the grid benefits of massive-scale storage.

Dan Holohan, author of The Lost Art of Steam Heating, talks about the old steam heating systems he learned about from veteran tradesmen. He shares stories and practical lessons on how these systems work, including running steam at low temperatures.

Matt Kulukundis explains how Google designed SwissTable, a fast, cache-friendly hash table, step by step from std::unordered_map. The talk covers open addressing, SIMD probing and the tradeoffs of changing a fundamental data structure.

Runar Bjarnason's Scala World talk argues that restraint and precision in components beat power and flexibility. Constraints on parts make them easier to compose into systems.

Bill Gates at Stanford's Global Energy Forum argues that cheaper solar, wind and storage are not nearly enough to stop climate change. He discusses natural gas, a carbon tax, nuclear, battery costs and the responsibilities of developing versus developed economies.

Andrew Kelley, creator of Zig, presents practical data-oriented design techniques for shrinking memory footprint and making programs cache friendly. He ends with a case study of how these ideas sped up the Zig compiler.

A DEF CON 24 talk on how a cyber mercenary group could forge identities and create the conditions for overthrowing a government. It is entertainingly outlandish and includes a drone-mounted saw for cutting power lines.

Stanford futurist Tony Seba argues that electric vehicles, battery storage, solar and autonomous vehicles form a 10x exponential disruption that will make fossil fuels obsolete within about a decade. It draws on his Clean Disruption book.

Alan Kay's 2009 UIUC talk arguing that computing is more a pop culture than a science and that ignoring history and fundamentals leads to inferior solutions. He touches on the history of interactive environments and what the web should have been.

Anand Giridharadas presents his book Winners Take All at Google, arguing that the global elite's philanthropy and 'win-win' framing preserve the systems that create inequity. He challenges the audience, including Google employees, to examine their own role in that system.