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How do you solve an intellectual problem like vampire-hunting? The problem inherently combines three subproblems: Obtain and use knowledge about something poorly understood, difficult to investigate, and lacking in clear “lanes” of expertise. Responsibly control the study of something...
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Economist Noah Smith is fed up with generic critiques of technological “solutionism,” specifically what he calls the “2010s consensus that technology is a sideshow compared to social movements.” In the last decade, we’ve basically been taught to deride “solutionism” — while Silicon Valley...
Ivan
Multi-version histories In conventional histories, at any point in time, there exists only one version of a data item. That means that the write operations always replace current version and the read operations always read the latest written version as it is defined by the schedule semantics:...
Ivan
Once upon a time, I was interviewed for a database engineering position. I was asked about what deadlock prevention algorithms do I know. I could not name a few (besides detection and randomization) and I was rejected. It was an unsatisfying experience because the ideas behind those algorithms...
Ivan
Recently, I came across an excellent exercise of testing a scheduling history for belonging to different serializability classes and had a lot of fun drawing a polygraph and finding out a cycle in it. When I finally managed to draw the correct version of the polygraph, I thought that it could be...
Ivan
This document contains simple examples and explanations of transaction isolation anomalies well known since the late ’90s. The work based on papers [1], [2], [3]. I hope it will be helpful for someone as a quick reference. List of covered anomalies include: G0: Dirty writes G1: Dirty...
Scott
It’s that time again! In February, I’ll be bringing the Two-Day Making Comics Workshop back to The Los Angeles Academy of Figurative Art for a fifth year. 14 hours of everything I can teach you through lectures and hands-on exercises. An intense look at the art of telling stories visually. The...