Okay I was thinking about it. And it is a transhumanist argument and nothing new, I do realise that before anyone points it out. But it struck me afresh today that the resurrection must happen.
Firstly, to state the obvious, a rational materialist conception of reality seems to exclude resurrection. For a start there is no good evidence a resurrection has ever happened in the past, just rumours and stories. Secondly traditional conceptions of resurrection rely on a distinction between physical and spiritual or the body and soul that we no longer recognise as valid. These seem like pretty good reasons for thinking resurrection is completely pie in the sky.
But if we follow a materialist conception of reality to its end conclusion we could argue that resurrection is at the end of the trail. Think about it.
Assmuption 1. If reality consists of material and nothing else then who we are and our consciousness arises purely from the order of the material substance of our bodies - primarily our brains. There is no spirit or soul involved.
Assumption 2. Since the material substance of the universe obeys consistent laws, the position and configuration of material in the universe at any given point in time could, in principle, be extrapolated from the position and trajectory of the material substance of the universe at any other given time.
Assumption 3. Over time humans (or intelligent beings generally) accumulate information about the universe, its content and laws. If this accumulation continues indefinitely it will inevitably reach a point where the material composition of the universe is known exhaustively, not simply for one point in time, but for all time. Just as geologists are now able to create maps of how the continents were configured millions of years ago by extrapolating continental movement according to physical laws, future scientists will be able to map out the exact composition of all matter at all previous points in time according to physical laws.
Assumptions 4. A civilisation or intelligence which has been able to exhaustively map the material composition and configuration of the universe over all of time will also be in a position to recreate entities including people from the past by recreating their exact material condition.
Assumption 5. Humans of each generation will be suficciently attached to their parents and immediate ancestors to insist they are brought back to life when it becomes feasible to do so.
If all of these assumptions are true, it seems to me that a general resurrection at some point is not just likely but pretty inevitable. Which is a ridiculous thing to say. But it seems to follow from the assumptions. And each of the assumptions as they stand seem quite reasonable.