[donna]

Me, too.

To me, “monkey banana eats” is harder to process because the monkey could be eating many things.

Easier is “monkey eats banana” because eat is only one thing and then we hear the final banana.

[Verginius Rufus]

Latin has a more flexible word order because nouns are declined, so usually the ending will tell you which word is the subject and which word is the object.

A Roman looking at the sentence "monkey eats banana" may wonder whether the monkey is eating or being eaten (not having any idea what a "banana" is). But if he was told a banana is a fruit, he could say Simius comedit bananam or Bananam comedit simius and it would be clear who was the eater and what was the eatee.

[FredZarguna]

But what if there is a second banana?

Often, this is what happens in your larger monkey families, because no one wants to be caught eating the final banana:

[Sorry, but "then we hear the final banana," just sent me into paroxysms of laughter. There are so many images you can get from that.]

Principle of Banana Well-Ordering:

Every finite, non-empty set of bananas has a least banana.

[UCANSEE2]

I think that what happens is that the brain gets ‘wired’ by repetitive use of a certain structure.

It then sees that structure as ‘easy’ or ‘normal’.

[discostu]

It’s really just reverse polish notation, only for language. It seems weird to us because we don’t think that way. Latin leans toward OSV, largely because the Romans realize they have a conjugated language and the subject is in the verb and unnecessary unless you want to emphasize it. Ie everyone’s favorite thing to hear “te amo” is literally translated as “you love (first person singular)” you only need to include “ego” if you really want to emphasize who is doing the loving.

[House Atreides]

Me, too.

To me, “monkey banana eats” is harder to process because the monkey could be eating many things.

Easier is “monkey eats banana” because eat is only one thing and then we hear the final banana.
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Well then, if you believe the article extract, the computational load on your brain has to have been lightened allowing you to choose more efficient systems of communication which encourage the use of more complex grammatical structures. There’s no other explanation. /sarc