[ispom]

Hallo friends of theoretical problems!

what do you think about dark matter in black holes?

I considered myself the following:

stellar black holes can only be composed of baryonic matter,
they was coming into being by stellar collapses,
and the stars was consisted of normal matter.

but what about supermassive black holes in galactic centres?
they arose in the process of galaxy formation,
must also composed 70 % of dark matter,
so as the average composition of the entire universe

do I'm right with this supposition?