What you do not know still happens to you

The argument

Proponents of this position argue that the comfort offered by ignorance is counterfeit, because ignorance changes only the knower and not the world. A disease progresses whether or not it has been diagnosed. A debt accrues whether or not the statement is opened. A partner's deception continues whether or not it is suspected. In each case the person is already living in the situation; all that ignorance withholds is the chance to do something about it. This is why the position treats ignorance as a harm rather than a shelter. The value of knowing is that it opens options, and options are what make a bad situation survivable: treatment can begin, a budget can be cut, a relationship can be ended or repaired. Ignorance closes those options not by making the problem smaller but by leaving it unaddressed until it is larger. Proponents note that the cases people cite in favour of blissful ignorance are usually ones where nothing could have been done anyway, and that these are the exception rather than the rule. There is also a cost in dignity, on this view. A person kept or keeping themselves in the dark is being acted upon rather than deciding, and the peace they enjoy is held on someone else's terms or on the terms of an uninspected risk. Many would refuse that bargain if it were put to them plainly. Because the facts a person does not know continue to shape their life while stripping them of any chance to respond, this argument concludes, ignorance is not bliss but a deferred and usually compounded harm.

Premises

Counter-arguments

Proponents of ignorance reply that this holds only where something can be done, and that a great deal of what a person could learn enables no action at all: the scale of distant suffering, the precise ways a body may fail, a catastrophe that may arrive decades hence. Where no lever is put in the knower's hand, the information adds anxiety and grief while conferring nothing, and they note how widely the point is honoured in practice when people decline a prognosis or ask not to be told.

Rejecting the premises

[Rejecting P1] This holds of facts bearing on the knower's own situation, which the opposing case does not dispute. It does not reach the far larger class of facts that operate on no one's life in particular, or that describe what cannot be altered, and that is where the claim for ignorance is actually made. [Rejecting P3] That ignorance usually lets a harm grow is an empirical generalisation the premises do not support, and the examples would have to be selected to fit it. Knowledge of an untreatable condition or an unavoidable loss reduces no harm, and the premise never separates cases where a response is available from those where none is.