What type of evidence was used most in "That's Not Progress!"? Did this make the author's argument weak or strong? Why?

1. Testimonial evidence: The opinions of experts

2. This made the author's argument strong

3. The reason is that experts, more specifically, mental health experts are authorities in the field of mental/psychological stress. Therefore, their opinions on the effect of social media on teens can be regarded as accurate.

Explanation:

In the article, "That's Not Progress", the author argued against the impact of social media on teens, describing it as negative. He pointed to the fact that social media made teens prone to depression when they are not acknowledged on those platforms.

He cited many mental health experts as evidence to support his argument. For example, he quoted one mental health health expert who said that 'a person's self-image can be damaged when unflattering  images about them are posted.' This strengthens the reader's belief in the author's side of the argument.

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.