[quote=@NuttsnBolts]
Freedom means that the easy choice is always available, and by limiting these choices you are creating a challenge for people. People work naturally with a challenge and will try to find ways around it, both creative and lazy ways.

I don't wanna say too much more cause I feel others will be able to explain better than me, but creativity is a direct result of having a limitation and it brings about the skill of problem solving.
[/quote]

I think that it's more that problem-solving is a direct result of having a limitation. One may have endless ideas up their sleeves, and writing and roleplaying give people a chance to use those ideas. But, on account of any limitations involved in a story or a roleplay, some ideas are lost, unusable. I'll make careful note that I don't consider that a bad thing right out, because problem-solving is another skill that's important to writing. The ideas that remain feasible may only be that way because you worked to make them feasible.

Ultimately, limitations restrict imagination but encourage reasoning. Another way to say it might be that limitations restrict the right brain but encourage the left brain. Whether that's a bad thing or not depends entirely on the context.