Many Leavers now believe that a perfect, costless version of Brexit exists, which they are being denied only through some mix of incompetence and conspiracy.
But, at unpredictable times, the loans do not get paid and then huge amounts of the taxpayers' money get spent to cover one of these supposedly costless guarantees.
The successful management of a business, a saintly life, heroic resistance against overwhelming odds, and personal consecration to an art or to a science are costless models for others, as are failure and bankruptcy.