I see, the ORM backed objects are lazy and trigger I/O when the data is accessed. On first blush I'm surprised that Rust culture would go for this as it spread

I see, the ORM backed objects are lazy and trigger I/O when the data is accessed. On first blush I'm surprised that Rust culture would go for this as it spread network i/o (incl network errors), async waiting and memory allocation widely in your code. This would seemto hamper eg the common "functional core, imperative shell" architecture which gets you many of the classic FP virtues. I wonder if I'm missing something that makes these less of a problem?