I'm struggling a bit to understand this, but am very intrigued by it.
I'm not sure I understand why or what this has to do with short vs long writing. I mean it seems to me that writing short - as Edgar Allan Poe said - you must focus on one thing, the entire story must be written to support the 'theme,' the meaning, the conclusion. This would seem to be MORE defined not less, yet unless I'm misunderstanding, you want to have a more defined theme in order to write long.....I'm probably just confused, maybe you could try and clarify for me, or tell me what I'm misunderstanding.
Umm, I hated those "pick your own topic" papers and projects in school. I always waited until the last minute to decide, made the decision out of desperation and later hated the topic I chose and struggled to complete the assignment.
It's like you're in a restaurant having dinner with your friends, they've all ordered and now they, and the waiter/ess are all looking to you. It's not a big menu, yet you can't decide. And it's not because things don't look good. They do, but you're not in the mood for them. You could go with your usual, but you want to be more adventurous than that. You want to challenge yourself, do something new, but with what? You're bogged down in the possibilities and, when it comes to it, as it has with the waiter standing over you and holding everyone elses menus, you make a choice not because you want it, but because you are desperate. When the food comes, it could be delicious, but all you will taste in the moment is decent, filling food, but you're not enjoying it.
More definition in this sense would be one of your friends telling you to try one of their chicken dishes, because the restaurant's chicken is the best chicken they've ever had. So now you're ignoring all the rest and simply looking between the 3 or 4 chicken items. Now you have far less possibilities and, with the field narrowed, you are able to make a choice and be happy with it. When the food comes, you find your friend was right and you enjoy the delicious (more than just decent, mind) and filling food. You leave the restaurant at the end of the night happy, giving a larger tip then your norm, and with a full belly stretching your clothes tight around your middle. You are happy, content, and ready for bed. This has been a great night.