[gjulianm]

> but your whole program's source code plus the interpreter plus the whole database engine fits inside your server's L1 cache, so K programs tend to be faster

Is that really the bottleneck? I've done quite a lot of profiling on high performance code and I've almost never hit a bottleneck in the instruction cache. Data access bottlenecks or branching hit performance harder and sooner than instruction fetching.

> And you don't get to waste time scrolling, your typical module's code fits on your single screen.

How much of the time you save scrolling is spent on decoding an array of symbols and remembering what those symbols are?