Main Question or Discussion Point
It is claimed in The Grand Design that during the early period of inflation when the universe was at the quantum scale, our time dimension behaved like a spatial dimension. But without time, there can be no change, because change is something that occurs over time. Inflation is a change, and hence there would be no way for inflation to occur in the first place, and inflation is necessary in order for the timelike dimension to curl in a way that makes it start acting timelike. In other words, this seems to be a contradiction. Please explain or direct me to a specific explanation.