That's one of the main reasons why gambling is so addictive.
More precisely, people (and animals) are more likely to take an action if the reward is variable rather than fixed. Enjoyment is a separate issue. The explanation in the article is also extremely oversimplified and there is a lot more research on this out there.
I also hope people don't artificially add randomness to their products just because they read an article online.
More precisely, people (and animals) are more likely to take an action if the reward is variable rather than fixed. Enjoyment is a separate issue. The explanation in the article is also extremely oversimplified and there is a lot more research on this out there.
I also hope people don't artificially add randomness to their products just because they read an article online.