I'm jaded. It takes one non-streaming detail in the entire system to ruin the whole thing. Some data formats need writing a length in the header. Or reading re

I'm jaded. It takes one non-streaming detail in the entire system to ruin the whole thing. Some data formats need writing a length in the header. Or reading requires metadata stored after the data. Some algorithms need two passes, or can be streamed over columns when you're getting rows.