Tragedy plus time equals comedy, or why you shouldn't trust Wikiquote

Warning: while this post may be about comedy, don't expect it to be comic.

I would consider the quote "comedy is tragedy plus time" an old saw, but it's still an interesting idea. Could every tragedy become funny, given enough time? The British comedian David Mitchell seems to think so. (I'll link to his video rant, which tries to explain why Vikings raping and pillaging in the Dark Ages is funny, but the Soviet takeover of Berlin in 1945 isn't yet, below.)

The quote should really be, tragedy