Interesting exploration of to do lists systems and our relationship to them. It's complicated and it's in good part because of empathy towards ourselves and our relationship to time.

Long and nice article about collaborative editing algorithms and their implementation. The problem space is tough, benchmarking is hard, profiling as well and optimizing even more so. Very thorough.

Good reminder of the limits of machine learning. There's no clear path from machine learning to more general intelligence. This article doesn't account for emergence effects though. They are a possibility but that's a long stretch from what being exhibited so far: it's "just" statistics.