Learn Spanish (Latin America): Es imposible que la inteligencia artificial reemplace al humano. - It is impossible for artificial intelligence to replace the human.

The phrase es imposible que is an impersonal expression that shows doubt or impossibility. Whenever you use a phrase like this to state an opinion or evaluate a situation, it triggers the subjunctive in the second part of the sentence.

Why is reemplace spelled with a c? Doesn't the verb reemplazar have a z?

Yes, the infinitive is reemplazar. However, in Spanish spelling rules, a z almost never comes directly before an e or an i. To keep the same sound when forming the subjunctive, the z changes to a c, making it reemplace.

Why does the sentence say la inteligencia artificial when the English translation doesn't use "the"?

In Spanish, when you are talking about an abstract concept or a general category in a broad sense (like artificial intelligence, love, or science), you almost always need to include the definite article (el, la, los, or las).

What does the al in al humano do?