[degenerate]

"empathy" "right" "help" "hope" "same"

None of those words appear in the article. I can deduce that the author of this article would never return a wallet. If they are this perplexed at the good deeds of others, and need to turn to science for a reason, they are as dense as a brick.

Reasons:

- because kind strangers have empathy

- because kind strangers want to do what is right, and help others

- because kind strangers would hope the same thing is done when they lose their own wallet