The question makes sense if we know what the terms mean. If we reserve the concept of eternity belonging strictly to the divine and only divine--and there is some indication that A. Pole is going in that direction with the Greek--then the concept of eternal life as belonging to human beings suggests to us a possible secondary meaning of eternal. For the Platonist, a metaxy is necessary in a universe of plurality.
Thanks for elaborating, cornelis. It appears to me that the metaxy is some sort of juncture (if I might put it that way) between the human being as a work of becoming in time, and his true being in (timeless) Eternity -- an intersection between time and timelessness of which a human being can become aware. Still, this does not put God "in" the spatiotemporal order. Were this to happen, God would be reduced to a work of becoming. Moreover, if God were "in" time and space, then the metaxy would collapse.... (I think maybe Hegel was fiddling with this very idea.)
or so it seems to me. What do you think?