The point was more persuasive and better supported by facts.

The point uses different facts and examples to prove their point.

The point states the counterpoint and shows why we could progress in technology. The text states, "For instance, people have been critical about the space program since its inception, saying that we would never get anything useful from blasting into the skies. However, [...] NASA administrator Michael Griffin noted that the technology to come out of the space program has greatly improved our lives"(point para 7). The point used an example to show that even though not everyone agreed with it, we didn't know until we tried.

In addition, the point uses examples to show that we need some animals that have gone extinct.