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Bryan Cantrill's LISA11 talk on how illumos arose after Oracle closed OpenSolaris. It covers the history of Sun, ZFS, DTrace and Zones, and the diaspora of kernel engineers, with a famous rant about Oracle and Larry Ellison.

Vaclav Smil's talk on historic energy transitions and what they imply for climate investment. He argues that transitions are slow, technology improves gradually, and only absolute cuts in energy use would truly work.

Allan Savory's TED talk arguing that desertification of grasslands can be reversed with holistic managed grazing, which he says would also help reverse climate change. TED notes that other scientists have challenged his claims.

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.

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.

David MacKay's TEDxWarwick talk uses basic arithmetic to show how much land and energy renewables would need to power a country like the UK. It explains the limits of sustainable options and why they should still be pursued.

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.

David MacKay, scientific advisor to the UK energy department, gives a Harvard talk on sustainable energy at macro and micro scale, drawn from his book Sustainable Energy Without the Hot Air. It stresses the land area renewables require.

Jean-Marc Jancovici gives an MIT Media Lab talk on whether technology can save us from climate change. He argues from a physical view of energy that economic growth, energy use and climate impact are tightly linked.

Freeman Dyson's 2005 Boston University talk on heretical views about science and society. He questions prevailing dogmas, including his argument that climate and CO2 are a land management issue.

Farmer Joel Salatin gives a TEDx talk on how well-managed grass and rotational grazing support sustainable farming and affect the climate. He draws on his work at Polyface Farm in Virginia.

Tom Chi gives the opening talk of a Foresight Institute competition on clean energy and clean air, framing excess CO2 as a carbon debt to repay and discussing large-scale tree planting, including by drone.

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.

Elon Musk gives students at the Sorbonne a short, simple explanation of climate change and carbon emissions shortly before the 2015 COP21 conference in Paris. He covers why CO2 accumulation matters and argues for a carbon tax.

Bryan Cantrill's OSCON 2015 talk on moving a proprietary product to open source, drawing on Sun's history with Solaris and illumos, licensing choices and the relicensing after Oracle's acquisition.

Ian Cooper's DevTernity talk revisits Kent Beck's original TDD ideas and shows where misunderstandings crept in. It argues tests should target behaviors through public interfaces rather than implementation details, so suites support refactoring instead of resisting it.

Bryan Cantrill's 2007 Google Tech Talk on DTrace, showing how dynamic tracing improves debugging of both development and live production systems. It includes a vivid war story about tracking down a problem on a Sun Ray server.

Clinical psychologist Stephen Ilardi argues depression is a disease of modern civilization and presents a lifestyle-based program to treat it without drugs. Topics include exercise, sunlight, omega-3s and social connection.

Gabriella Gonzalez argues that developers misunderstand marketing as deception or hype, and applies the technology-adoption ideas of Crossing the Chasm to Haskell. She looks at what keeps Haskell from reaching mainstream programmers and what a community can do about it.

Sid Meier's GDC 2010 keynote on how players perceive probability in games, including how Civilization's odds were adjusted because players misjudged them.

The day one keynote of Google Cloud's 2016 GCP NEXT conference, with Sundar Pichai, Diane Greene, Eric Schmidt, Urs Holzle and customers. It includes a Cloud ML demo by Jeff Dean.

Jim Keller, CTO of Tenstorrent, talks at Samsung Foundry's SAFE 2021 about building AI silicon through modular, provable design. The talk also touches on Tenstorrent's RISC-V Ascalon core.