How the economic cost of Brexit is being hidden from Leave voters

One of the reasons Brexit can happen is that its economic costs are not immediately visible. It is experienced but not isolated as a Brexit effect. It can be estimated to a reasonable degree of accuracy by experts, but the Brexit press keeps going on about the pre-referendum Treasury forecast and the broadcast media prefers a quiet life to routinely quoting these expert assessments. Brexit is not about the economy only because Leave voters are being kept in the dark about the impact Brexit is already having.