Btc has run too far too quickly possibly due to manipulation by hedge funds. But it wont crash too hard I think. By guess is undervalued alts will rally hard now. Just a guess
I agree in regards to Bitcoins rally. It was way too fast and likely due to manipulations by big players. I sense the correction is around the corner, but if it happens, alts may also suffer and not start to soar up. Just my opinion on it.