Simple games and short videos grab our attention because they’re easy to...

https://sierra-wiki.win/index.php/What_Makes_a_Game_Fun_to_Watch_Even_if_I_Am_Not_Playing%3F

Simple games and short videos grab our attention because they’re easy to understand and visually engaging. When you see a Plinko-style drop or a quick challenge, it creates a little rush of anticipation that keeps you watching or playing