Are the Q inherently four-dimensional?

I've always assumed that the Q were truly four-dimensional (or higher) beings, in that they could move through time as easily as we move through space. But Q's actions always seem to be in chronological order- that is, he talks about events that have happened in the past and seems to have no knowledge of the future (in contrast with The Prophets). But time travel happens all the time in Star Trek- they even do it themselves in Death Wish, so I find it difficult to believe they wouldn't be four-dimensional. An interesting thing to note is that Q Junior was born during the time Voyager was in the Delta Quadrant, and yet was an adult (although let's not assume anything about their lifecycles). So maybe only part of their existence is linear, the part we see.

My question is, why do the Q seem to have a linear existence? Could it be that they enforce it on themselves to exist primarily in one time? Or is there no in-universe justification, that it's just to make things make sense for the viewer?

• They may be bound by something similar to the Temporal Prime Directive, and are generally restricted from revealing the future to lesser races. Commented Apr 5, 2014 at 13:21
• "They shouldn't be in the Delta Quadrant for another hundred years!"- Q Commented Apr 5, 2014 at 13:38
• The prophets do at least have a glancing understanding of 4 dimensionality; "We are of Bajor" Commented Apr 5, 2014 at 13:39
• The understand space, clearly, but didn't understand time until Sisko showed up (the paradox of the idea of them existing before they understood time is interesting). Commented Apr 5, 2014 at 13:43
• The Q would have dimensions beyond the basic four. WE are four-dimensional in our current understanding of science; we exist primarily in a space with length, width, breadth and move through time - in one direction, without control over the rate. The Q are able to perceive with a high degree of awareness, forward and backward through time, move forward and backward through time, and even alter events previously in existence (if they want to). So the Q exist primarily in higher dimensions and can manipulate the fourth dimension the same way we manipulate matter in our primary three dimensions. Commented Mar 30, 2015 at 2:30