https://screwjankgames.github.io/engine%20programming/2020/0...
https://www.bytesbeneath.com/p/the-arena-custom-memory-alloc...
I also don't know how much we want to butcher this blog post, but:
> RAM is fundamentally a giant array of bytes, where each byte has a unique address. However, CPUs don’t fetch data one byte at a time. They read and write memory in fixed-size chunks called words which are typically 4 bytes on 32-bit systems or 8 bytes on 64-bit systems.
CPUs these days fetch entire cache lines. Memory is also split into banks. There are many more details involved, and it is viewing memory as a giant array of bytes that is fundamentally broken. It's a useful abstraction up until some point, but it breaks apart once you analyze performance. This part of the blog didn't seem very accurate.