It worked! Kinda. I took Matthew Bishop's challenge, and tried to spend a gram of gold like I would any other currency. And, frankly, didn't have a lot of luck -- until I managed to find a small business where the owner just happened to be standing around. In the end, I got three lobster rolls (and free drinks, too) for one gram of gold. Which were very tasty -- thank you Snack Box!
So, what did I learn on my expedition in Times Square?