Videos Worth Watching
Carburetors were the de facto standard for gasoline engines prior to fuel injection, and they're still prevalent today. While technology has changed, the core fundamentals remain the same. The precursor video to this (linked in the video description) is a must-watch!
Stuff Worth Reading
How Discord Stores Billions of Messages
We decided early on to store all chat history forever so users can come back at any time and have their data available on any device. This is a lot of data that is ever increasing in velocity, size, and must remain available.
Discord really took a different approach to what the free version of Slack did, where there was a limit to the number of messages you had access to. With literal terabytes of storage in use, it's a challenging architectural problem to solve.
Discord has since moved to Scylla, but the challenge remains, especially in these COVID times.
Why are hyperlinks blue?
When the hyperlink was created, limited colors were available. Today we have almost every color option, so what should be the default color and state of links on the internet? When given every opportunity to deviate from tradition, do we do so for the sake of progress, or should we keep the blue because it’s an established visual pattern?
You can be in the back seat and travel to a place a hundred times. But until you take the driver's seat you'll never know the way. You’ve got to at one point stop taking directions and just go. Magic happens when you get your hands dirty.
Nash may be stating the obvious to some, but for others this is a clear, pointed message: you learn so much more by doing. You are not a visual learner, and you are better off abiding by the Ms. Frizzle Mantra of getting messy and making mistakes.
The Replication Crisis
The replication crisis (also called the replicability crisis and the reproducibility crisis) is an ongoing methodological crisis in which it has been found that many scientific studies are difficult or impossible to replicate or reproduce.
I first learned about the Replication Crisis when listening to the Cortex podcast's episode on the book Thinking, Fast and Slow, and it was pointed out that the Replication Crisis really started to make headwinds shortly after the book came out. It's a crazy thing to think that many studies being conducted struggle to be reproduced.