What’s your favorite thing about yourself?
A Driller’s Reflection on the Absence of Ancient Life Underground
As someone who has spent decades drilling across continents from Africa to the Arctic, from mountains to deserts I’ve often found myself pondering a simple yet profound question: Why have we never encountered any trace of ancient life deep underground?
Over the years, we’ve drilled thousands of meters below the surface, retrieving core samples from some of the oldest and most remote geological formations on Earth. We’ve passed through layers of volcanic rock, metamorphic belts, and deep-seated mineralized zones yet never have we pulled up a sample containing a visible remnant of life from a forgotten age.
How is this possible?
There are several scientific explanations that might help answer this question:
Life is rare in the deep subsurface While extremophile microorganisms have been detected several kilometers below ground in controlled laboratory settings, they are not visible to the naked eye. In standard exploration core drilling, such traces would go entirely unnoticed without microbiological analysis. Fossils form in different environments Most recognizable fossils are preserved in sedimentary rocks, especially those formed in shallow marine or lacustrine environments. Exploration drilling often targets mineral zones, fault systems, and deep geological structures not the sedimentary basins where ancient life typically left its mark. Geological time destroys what life creates Over millions or even billions of years, rock is transformed by heat, pressure, and tectonic forces. If life once existed in the deep zones we drill, it may have long since been erased or altered beyond recognition. We may not know what to look for If life once existed in a form unfamiliar to us perhaps based on different biochemistry or morphology we may have encountered it without realizing. It’s possible that the evidence lies hidden in plain sight, just beyond the limits of our perception or current technology.
The Absence of Evidence Is Not Evidence of Absence
This thought lingers with me: just because we haven’t found it, doesn’t mean it isn’t there. Perhaps the Earth still holds secrets too deep, too rare, or too subtle for our tools to uncover. As drillers, we are explorers by trade, and maybe just maybe some discoveries lie not in what we extract, but in the questions that arise along the way.
– Lajos Kovacsik





