Thanks for the direct link to relevant cites. Oh, you say they're somewhere in a book. Not great (that said, '59 seconds' is good).
Snake oil alarm: "the keys to productivity" - maybe there's proof that this approach can work, but "THE keys"? As in there's nothing else that can work? Come on.
"As Richard Wiseman illustrates in his book “59 Seconds: Think a Little, Change a Lot,” the problem is that the majority of self-help books actually promote exercises that “destroy motivation, damage relationships and reduce creativity; the opposite of everything [they] promise.”"
Snake oil alarm: "the keys to productivity" - maybe there's proof that this approach can work, but "THE keys"? As in there's nothing else that can work? Come on.
Good luck.