The board is big enough for two, so why didn't Rose let Jack on, so they both could live? It's frustrated logical cinema goers for the past 15 years, and there's been debate on both sides of the fence, with this meme floating about in recent years, but now Mythbusters have finally laid to rest the question. And then they brought the answer to James Cameron, who offered his rebuttal. At last, we can sleep easy.