Bitcoin is falling because the alts did not follow the recent price surge.

In a real bull market the two markets alternate ups and downs. Thats how bitcoin can sustain an increase in its value.

Maximalists rejoice when they see altcoins going down. What they fail to see its that the constant swap between those currencies, practiced by experienced whales, is what makes the price go up in a organic way.

The recent surge increased bitcoin dominance in a artificial way. Now it will go down, probably to the 7-8k area. Altcoins will need to pick up.