Dark Memes

Why do programmers code on a dark background?

Because light attracts bugs!

Why is "dark" spelled with a "k" and not with a "c"?

Because you can't C in the dark!

I have a joke on timetravel, but you guys didn‘t like it, so I wanted to post a joke on dark matter, but you won‘t be able to see it. Unfortunately, my joke on black hole really sucks. I‘d also have a joke on quantum physics, but you wouldn‘t get it. So finally, I could offer a joke on Edison, but it is copied.