Best of 2020

The blog posts Hacker News loved most in 2020. 5,567 posts.

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5325

Understanding Raft Consensus

Recently I was digging deeper into Raft , an important algorithm in the field of distributed systems. Raft is a consensus algorithm , meaning that it is designed to facilitate a set of computers agreeing on a state of the world (more on exactly how the state of the world is represented later), even when communications…

5335

ARM MacBook vs. Intel MacBook

Up to yesterday, my laptop was a large 15-inch MacBook Pro. It contains an Intel Kaby Lake processor (3.8 GHz). I just got a brand-new 13-inch 2020 MacBook Pro with Apple's M1 ARM chip (3.2 GHz). How do they compare? I like precise data points. Recently, I have been busy benchmarking number parsing routines where you…

5338

The cup-of-coffee pricing fallacy

If you’re lurking on HackerNews, or are interesting in entrepreneurship, you might occasionally bump into something like this Starbucks coffee is $2.45 + taxes. $100/mo is less than a cup of coffee a day. And it’s very tempting — and somehow logical — to consider how much money we might spend without thinking too much…