If you CAN prototype a mechanic, then it might save you hundreds of hours.
For example, sometimes I know exactly what kind of game I'm making as it's something I've thought about for years. Other times, I do not and so I have to feel my way through it.
My main example is a 2D side-on sci-fi game where you manage a ship(s), crew, land on stations and planets etc. I started with "ship design", specifically how the player designs their own ship, where I'm figuring out how I want power-supply and ship-management to work.
I really, really love to be able to build/modify my ships in games. It's one of my favourite things to do in that genre, but I want to explore the different ways that I can do that when I'm making my own game. I need to prototype different ideas before I know what I want.










