Clue 7

37 squared. 37 raised to the second power.

Something about the self-reflection gained through writing gives Ellison his image. Writing, like squaring the number, gives it a second dimension, a way to see yourself.

The lightbulbs in his hole are everywhere - walls, ceiling. You have to imagine that as a result there are no shadows in that room (his next book of essays would be called Shadow and Act).

Clue 8