What it is
A course in which Adam and Felix taught how they prototyped and produced their own products — the part of the business almost nobody in magic publishes.
What it drew on
Every Vulpine release had to survive six months of testing before it shipped, and for each product that went out, five to twenty ideas were discarded. Each of those had already consumed weeks or months of work before the testing rule delivered its verdict.
The coin bend was one of them: a spectator’s own coin, bending visibly in front of them, with extraordinary reactions. It was difficult to manufacture consistently and the durability did not meet the standard, so it never shipped. That judgement — what to stop — is most of what the class is about.