Why saddened? And what is the other side's standard response to my (apparently well-known) question? I admit I don't know economics at all :-(
Why saddened? ... I admit i don't know economics at all :-(
Because of what it says about economics -- that an outsider can reach the same conclusion, for the same reason, as (half of) the "experts". Remember the "layshadow test"? If an academic field is such that a layperson can come in, spend a few hours, and produce output indistinguishable from people who have spent years "learning" the field, then that field is lost because the inferential distance is low, implying little knowledge accumulation.
That's what seems to be...
Tangential, but a subject of some local interest:
Why Bitcoin will fail by Avery Pennarun. "The sky isn't red." Thesis:
I'm not sure I buy these and am not competent to evaluate his claims on 3., but would like others' critique.
L019: Bitcoin P2P Currency: The Most Dangerous Project We've Ever Seen by Jason Calacanis. A rather more enthusiastic viewpoint of the project:
The actual text contains many more caveats than the eye-catching selection of points above.