Bitcoin was once dominant in the crypto market being pioneer of crypto currencies.Then it started to lose its dominance gradually due to the entrance of hundreds of new coins.

Bitcoin's dominance was at its lowest at 36.1 percent.

But now, once again bitcoin's market share has reached high  to 57.09 percent which shows that people have lost faith in most of the shit coins and find only bitcoin to be the safe haven.

https://www.reddit.com/r/Bitcoin/comments/9f0bed/new_btc_dominance_record_since_13_dec_2017/