Is there a paradox in line 2 of Evans' poem "The Iceberg Seven-eighths Under"?

Scientists have explained much of the universe as “dark
matter,” and they have learned about “black holes” at the centers of galaxies.
Astronomers have used the Hubble Space Telescope to examine objects as much as billions
and trillions of light years distant in space, or, in other words, objects as they
appeared near the time of the origin of the universe as we know it. Despite these
advances, the speaker of “The Iceberg Seven-eighths under” states that “We know
incredibly much and incredibly little” (line 2). There is so much to know that still
“goes secret, sunken, nigh-submerged” (line 10). The invisible part of the iceberg thus
is an apt metaphor for the status of human knowledge about the inscrutable extent of the
universe. There is indeed a paradox.