On 02/12/2012 11:20 PM, dlzc wrote:
Dear Yousuf Khan:

On Saturday, December 1, 2012 3:38:31 PM UTC-7, Yousuf Khan wrote:
whereas dark matter and energy aren't yet, so
they can't be of the same origin.

Clearly not true for Dark Matter. Dark Matter will / does have a contribution from MACHOS (inclusive of black holes), WIMPS (however unlikely from many other recent observations), unexpectedly ionized normal matter, and whatever is left some exotic stuff.

The black holes cannot have consumed much normal matter, or Dark matter will have been seen to increase.

David A. Smith

Well hardly anyone talks about Dark Matter as MACHOs, but most people
think of WIMPs as being Dark Matter.