An article about a fundamental philosophical question: why is there anything, instead of nothing?

Following deep down the rabbit hole, we can see that nothingness is actually not that trivial. Something naturally arise easily from nothingness. Logic, math, conciousness all have their root from nothing and yet are no nothing. A quite inspiring read.

The article discusses how transaction is implemented in SQLite using db journals. I also learned how sqlite utilitize pages to map data in files and in memory. Good to dabble in some database internals.

An informative post about how to do Redis clustering. It includes a number of nicely-drawn illustrations.

The author made a point that reference count is almost always superior than GC in any case.