Reason #1: Because it’s the last one you read.
Reason #2: Because it just might be the last blog post you ever read.
A recent study suggests that just because I said that it might be the last blog post you ever read, you’ll probably value this post more highly because you think things might be coming to an end.
These human psychological biases make their way into experience design all the time. Consider how slot machines help you win small amounts frequently enough to keep you feeding coins into the slots.
The more interesting question is how they could be used to present the most helpful, productive, sustainable, or good-for-you option? I’m leaving you with that thought LAST so hopefully it’ll stick with you.