I was speaking to someone earlier today and they asked me if I had got a graphics card for my computer yet and I said no. Their response was "How come?" Basically, my whole world stopped to contemplate this phrase. He asked me and I knew what he meant, but I for some reason couldn't accept that "how come" is lateral to "why not?" Seriously? The word HOW refers to the act of something; something being done. The word COME (in a non perverted -cum- sense) is a word that is related to movement. I sat here and I thought about this for a good hour or two now and I just don't get it. I guess I could google it and see what it says, but I wanna see if anyone here knows? Is this just evolved slang? WHAT THE FUCK IS UP WITH THIS PHRASE?