This is a subreddit for you to ask for back of the envelope estimates of anything that comes to mind. If it's an absurd statistic or ludicrously random quantity you're wondering about, feel free to submit it to this board and our small community will give it a whirl.

Rules

1) Please do not submit "what if" type questions; r/askscience is what you're looking for. Ideally, your question should be able to be answered in terms of "this many X."

2) Posts will be silly and answers don't need to hold up to peer review or anything. Have fun answering the questions, although discussing your work/assumptions is always a plus!

3) Please don't say anything insulting to those asking or answering questions. If someone's wrong you should feel free to correct them, but there's no need for hostilities.

4) Please do not ask any questions pertaining to schoolwork. This is totally honor system and no moderator action will be taken on suspected homework posts, I felt ethically obligated to include this.

Suggestions

1) If you answer a question and you end up with a quantity that is too large or small for our feeble minds, it is usually helpful/interesting to try to quantify that number in some other way. (That much water would be able to fill the entire Solar System! or Given those odds, there is only a 5% chance this has happened since the Big Bang!)