Originally Posted by Dude
And if you read on, it concludes by basically saying the reason the people are more intelligent is because they learned algebra.

I didn't get that message. Maybe I missed the part you're referring to, but I read this:

Originally Posted by Dudley essay
...mathematics develops the power to reason.

Getting better at reasoning doesn't make you inherently smarter. It just means you're better at a skill you develop by doing maths. If I practice skating every day, I'll get better at loop jumps and backward three-turns, but my innate abilities won't change.