There's a button which, if you press it, you get 10,000 dollars! However, first you are sent into a dimension of nothingness, where you will be stuck for 500,000,000 years with nothing but your thoughts to keep you company. After this hellish existence, you will be transported back to the moment you pressed the button, with all your memories erased. Would you press it?

Such is the topic of this manga. Unfortunately I haven't been able to find an English translation of it.
http://umashika-news.jp/archives/51950055.html
As one commenter so adroitly puts it, "こんなDQNじゃ五億年でも宇宙理解できないだろｗｗｗｗｗｗｗｗｗｗｗｗｗ " (these DQNs wouldn't be able to understand the meaning of space even with 500,000,000 years lololol)