It is possible for an event or proposition to cause a re-evaluation of basic assumptions. However, this line of questioning opposes taking for granted the basic tenets of a conversation and moving forward. On the one hand, understanding a scientific/social/religious/political context. On the other, creating a new field of discussion. The former is comfortable because its terms have already been articulated, disrupting the comfort in predictable ways. The latter avoids answering basic questions that may very well be impossible to declare definitively, moving the discussion to a contemplation of effects.
Take an example from the philosophy of science: matter is mostly empty space! And yet, when I go to open a door, that wild meditation is irrelevant and I turn the door handle as if matter were mostly that.
Another particular case in point, and derived from some recent conversations with Kim Simon: who cares if curators are artists? The viability and impact of the curatorial gesture is more fun to contemplate.