Dear pbgreenpoint,
So true. About 30% dominance - that is quite interesting. Definitely alts are the thing, but not only right now - since November and especially December.
And you are right again. If btc goes up fast, alts usually drop. If btc goes down fast, alts go down as well. Everything between normally lets alts rise. Of course there are some exceptions.
Yours truly,
Gandalf The White