Doing a solo journaling game called The Bonsai Diary. Lots of fun drawings trees and playing with calligraphy pens. https://emilsgameroom.com/the-bonsai-diary-a-solo-journaling-game/

I'm glad you are thinking about trying it! It's one of the few "tricks" I have as a GM that that really just works every single time. So I'd be really happy to see more people using it and getting feedback on how it went for them. DnD has some pretty similar wording in the text of the wish spell. However, in the discussions I've had about the spell online and offline I've found that the power of the spell tends to get misremembered and flattened to "the player gets to do whatever they want" which can be pretty intimidating from a GM perspective. Anyway, every time my players have cast wish it always ends up being a huge deal that they remember for years after and as long as you do a little prep before hand it's not that hard to manage on the back end. Since I'm kinda lazy as a DM I like getting big payoffs for my players without having to put in too much effort :P

The simple answer is entropy. It's much easier to poor a bunch of energy into something and have it express itself as heat than it is to retrieve spent energy out of an object. You can burn down a forest and make a lot of light and heat, but you can't spend light and heat to turn smoke into a dark, cold forest.