Artist's Drawing of a Black Hole (Cygnus X-1) / NASA, CXC, M.Weiss (http://chandra.harvard.edu/photo/2011/cygx1/cygx1_ill.jpg).
What is a Black Hole in Physics-Speak?
'The warped space-time remaining after the gravity of a massive body has
caused it to shrink down to a point. It is a region of empty space with a
point-like 'singularity' at the centre and an event horizon at the outer edge.
It is so dense that no normal matter or radiation can escape its gravitational
field, so that nothing, not even light, can ever leave (hence its 'blackness'). It
is thought that most galaxies have a supermassive black hole at their heart'. 
What Does a Black Hole Have to Do with Writing and Creativity?
As part of my research, I secured a faculty position at a HBCU, intent upon
expanding my knowledge, while testing a core hypothesis of my evolving theory
of the Physics of Writing...Dream-Writing...Chaos to Creativity©, specifically:
'African-American students possess a greater natural intuitive
potential for creativity and writing, due in part to their learned
play with language, than their white suburban counterparts'. 
Which is not recognized and nurtured by 'traditional' English Department
faculty; but is instead ignored and/or suppressed by the creativity-killing
'HIVE MIND' of the 'COMPOSITION COLLECTIVE' ... 'ASSIMILATION' or 'TERMINATION'.
Always the metaphorian, I labeled this dynamic the 'Creativity BLACK HOLE Phenomenon'.
While my observations and findings are, admittedly, qualitative, they are nonetheless based on 40-plus years of experience in business, management consulting, freelance writing, and 10-plus years developing and delivering innovative writing courses for the 'literal' and 'virtual' college classroom,
for 'A [creative] Mind is a Terrible Thing to Waste'.
1 Mastin, L. (2009). "Black Holes and Wormholes." (http://www.physicsoftheuniverse.com/topics_blackholes.html).
In The Physics of the Universe: Difficult Topics Made Understandable. (http://www.physicsoftheuniverse.com/).
2 Beman, D. K. "Book §1.00 Introduction to the Physics of Writing." In Physics of Writing...Dream-Writing...Chaos to
Creativity. 2nd Edition (pp 17-37). WordShop Publications. Physics of Writing Inc. (2017).
Physics of Writing Inc. Copyright 2017 Donald K. Beman All Rights Reserved
Creativity BLACK-HOLE Phenomenon