When can we know our assumptions?

The expression “The owl of Minerva flies at dusk” is used to convey that philosophers are only able to identify the assumptions that are made within a period of history, a period of which they are part, when that period is coming to an end and those assumptions will soon no longer be made. In this paper, I support a rival view according to which those involved in a historical period can know their assumptions earlier, given appropriate talent and effort.