“Fake it till you make it” isn’t a dishonest life hack. It’s a tried-and-true path to mastery. Even the works of forgers, who engage in deliberate deception, can become collectible and celebrated in their own right. British painter Tom Keating, for example, successfully sold hundreds of pieces at auction under his own name, after being outed as a forger. One of his J.M.W. Turner pastiches sold for £27,500 in 1989 (about $45,000, or $120,000 today), a few years after his death.