If bitcoin stop the continue growht, alt will increase 10/100 times their value
It could possibly happened in this year 2018 as a year of altcoins. Because it happened in 2017 that bitcoin very tremendously increase its value up to $20K then suddenly down to $14K. As the altcoins follows the same thing with bitcoin because bitcoin has many fork base on the fork website, this year making altscoins year. This a good year to invest altcoins.