[ExI] Has the mystery of Dark Matter been solved?

spike spike66 at att.net
Sat May 28 02:55:57 UTC 2016



From: extropy-chat [mailto:extropy-chat-bounces at lists.extropy.org] On Behalf Of John Clark




>…Apparently they ​

​are. Unless they LIGO people were astronomically lucky they are far more frequent than anybody predicted. Most thought it would be decades before they heard anything that good, and some thought they never would…  John K Clark




I never participated in the debates a few years ago over whether LIGO would be worth building, but I was quietly cheering for the LIGOers.  Being a space guy, I always like to see orbiting observatories, and I admit that ground-based stuff just isn’t sexy.  But I also think it is worthwhile to always check theoretical predictions at every opportunity.  Good thing we did this time, ja?


To find that chirp in such a short time fills me with hope that our notions on black hole formation are baloney.  It is so exciting to learn that something we always took for granted is screwed.  Progress!


It makes me really focus on the question:  if we turn on the LIGO in the fall and find one of these merger events every couple months, why would the BB have given us so many black holes in the 10 to 100 solar mass range?  What fundamental black hole formation mechanism did we systematically overlook, and noooobody caught it?






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