The dangers of the unknown unknowns are greater than those of the known unknowns.

Sir, Martin Wolf asks, “Is it possible to know the state of the UK public finances under present conditions?” He answers “No. The unknowns are too great.” “Some ‘known unknowns’ about the UK economy”, October 19.

Indeed, but to me, the most dangerous unknowns for the UK, and for much of the rest of the world, are the “unknown” unknowns. 

Like how much of the savings for the future, of those who are the least able to manage major upheavals, has been invested in houses; those homes that because of so much preferential finance increased their prices so much, that they were turned into also being risky investment assets?

Houses are good investments… until too many want to convert them simultaneously into main-street purchasing capacity.

Like how much of the illusion of public debt sustainability is solely the result of preferential regulations, like the Basel Accord of 1988 decreeing a 0% risk weight to sovereigns and a 100% risk weight to citizens?

Any sector given more preferential access to credit than other is doomed to unsustainable debt… just like Greece was doomed by the 0% risk weight some yet unknown EU authorities awarded it.

Sir, when compared to these in general unknown unknowns, the known unknowns, like Brexit or trade wars, are just peanuts. 

@PerKurowski