weak aptitude for language learning
This is such bullshit. As a Brit abroad, our problem is weak language education. We are taught to such a poor degree and we are not taught how to learn a language. It's been the biggest struggle of my adult life trying to get conversational and after a year I am still way behind my cohorts - it's not some genetic predisposition to being bad at language learning, but a lack of language infrastructure in childhood.
"We invented a new kind of calculator. It usually returns the correct value for the mathematics you asked it to evaluate! But sometimes it makes up wrong answers for reasons we don't understand. So if it's important to you that you know the actual answer, you should always use a second, better calculator to check our work."
Then what is the point of this new calculator?
Fantastic comment, from the article.