Man From The Future

I'm not really a big reader of science fiction, but this short story was going around the internets a few days ago, and since then it has lingered in my mind long enough that I thought I should post it. There is a bit of a tease at the end. I heard someone compare it to the words Bill Murray says at the end of Lost in Translation. Well, it is and it isn't. Read it yourself. What would the three words have to be for all this to make sense?