(11:43:22 AM) Friend: my calc teacher once called the Down Industrials a 30-dimensional vector
(11:43:28 AM) Friend: I’d love to be able to visualize that!
(11:43:30 AM) Me: Down Industrials?
(11:43:33 AM) Friend: *Dow
(11:43:34 AM) Friend: lol
(11:43:46 AM) Friend: that was rather ironic I should type that
(11:43:48 AM) Me: Wow… where can I invest in a market that’s doomed to go down?
(11:43:51 AM) Me HA!
(11:43:56 AM) Friend Yay shorts!
(11:44:03 AM) Friend I just put mine on, they’re dark blue
(11:44:12 AM) Me ha!
(11:44:19 AM) Friend can’t go out for breakfast in my undies

Note: In the finacial market, “shorts” refer to selling something not in your possession and then buying it back later.  Typically, you would want to “sell” when a stock is high and “buy” when it is low.  This is a dangerous endeavor and should not be tried unless you really know what you’re doing.