In the Farmersburg School Questions Show, I just heard Fraser say, that if you go fast enough you'll turn into a black hole. Is that really so? I remember reading somewhere before, that speed does NOT really increase the mass of a moving body. Momentum and kinetic energy, yes, but NOT the mass. And that the whole concept of "relativistic mass" is just confusing and not really needed.

So how about it? What say all yous experts here?

EDIT: I'm not again sure if this thread is the right place for this kind of post, but I couldn't find the Farmersburg thread, and it's kinda 'bout black holes anyways...