D5 is a space on a chessboard, but in the Q context the reference was speculated to be part of a certain set of chess moves in a famous game.
I'm of a mind that in the context of that Q drop, D5 is a reference to the avalanche danger scale. "The snowball has begun rolling - there is no stopping it now. D5."
Alrighty then.
Why are the symbols for Extreme and High the same?
RE: the Avalanche Scale-thank you! finally