https://www.pcgamer.com/this-powerpoint-presentation-does-a-good-job-explaining-spectre-and-meltdown/

Red Hat via Jon Masters. Click for original (PDF).

Have you tried wrapping your head around Spectre and Meltdown only to come away feeling confused? Don't worry, you're not alone. For that very reason, Red Hat's chief ARM architect Jon Masters gave a keynote on the recently disclosed vulnerabilities at FOSDEM, a free event for open source software developers, with a detailed PowerPoint presentation that breaks things down.