Have you ever found yourself caught in deep thought? Perhaps you are coming up with some elaborate and unanswerable questions. Maybe you are coming up with a plan or thinking about the future, or perhaps you are caught thinking about nothing at all.

When people are all by themselves, stuck with only their minds, that's when "shower thoughts" are created. A shower thought is a peculiar sort of thought that raises more questions than it does answers.

Sometimes it's a realization, or a question, or an unsettling thought. They get the mind going and are pretty intriguing in nature. Even if you cannot come up with your own unique shower thoughts, Reddit has a whole subreddit made just for them.

The appropriately titled subreddit "Shower Thoughts" is full of these big ideas and moments of wonder that are worth thinking about today. Here are just 15 of them to satisfy any inquiring mind.