Learn Italian: I nuovi paradigmi cambiano il mondo. - The new paradigms change the world.

Even though the singular noun paradigma ends in -a, it is actually masculine. This is a common pattern with Italian words of Greek origin ending in -ma, such as il problema or il sistema. Because it is masculine, it takes the standard masculine plural ending -i, giving us i paradigmi.

Why is the article i used here instead of gli?

The definite plural article must match the word immediately following it. Because nuovi starts with a normal consonant (n), we use the standard masculine plural article i. Even without the adjective, it would be i paradigmi because p is also a regular consonant that doesn't trigger the use of gli.

Why is nuovi placed before the noun instead of after it?

Common adjectives like nuovo, vecchio, and bello frequently come before the noun. With nuovo, placement changes the nuance slightly. Before the noun (i nuovi paradigmi), it means "new to us" or "newly adopted." Placed after the noun (i paradigmi nuovi), it would strongly emphasize that the paradigms are brand new or freshly invented.