When I’m designing interactive stuff, Gestalt principles help me make things look organized so users aren’t confused. Like using proximity means putting related things close together, which makes it easier to understand what goes with what. And if buttons that do similar things look the same, people don’t have to figure out how to use them every time. I can also use things like closure and figure-ground to make the important stuff stand out so users know where to look first.
Fitts’s Law is about the actual physical part of using something – like how fast and easy it is to click on something or tap it on your phone. So I should put buttons people use a lot in places that are easy to reach, and make sure they’re big enough that you don’t accidentally miss them. Small buttons in weird corners are just annoying.
I think combining these two ideas makes sense because Gestalt makes things look clear and organized, and Fitts’s Law makes sure they’re actually easy to use physically. Like it’s not enough for something to just look good – it also needs to work well when you’re actually clicking around or tapping on it. Together they help make designs that feel natural to use instead of frustrating.