Rules of good writing (2007)

>Readers comprehend “the boy hit the ball” quicker than “the ball was hit by the boy.” Both sentences mean the same, but it’s easier to imagine the object (the boy) before the action (the hitting). All brains work that way.

I agree with this, but I doubt that all brains work this way. It's probably true of almost all English speakers.

I think the processing effort is likely a side effect of English mainly using sentence constructions that go subject->verb->object. Not all languages do that, so I suspect that your brain has an easier time processing whatever's most common in the language.

I think the counterargument to this simplistic assertion is that "The boy was hit by a ball" seems equally legible to me to "A ball hit the boy". If you're quickly reporting the details of an accident to a doctor and it's crucial to get the information across quickly, I think many speakers would still start with "He was hit by a ball", not "A ball hit him." We're not interested in assigning agency to the ball here, we're interested in the effects on the boy. We're focusing down on the boy first, then talking about what is happening. Is he hitting a ball? Getting hit by a ball? Nobody cares what the ball's doing, it doesn't need to be prepped for surgery.