"We" are probably not, or only to a small degree, descendants of this guy, because Britain was invaded multiple times, but "modern human" definitely implies com

"We" are probably not, or only to a small degree, descendants of this guy, because Britain was invaded multiple times, but "modern human" definitely implies common ancestors in "modern" paleohistory. The neanderthal genetics don't matter so much as the loss of pigmentation is thought to happen fairly quickly anyway. If this appears like pseudo science, then because little is known and assumptions have to be made. For example they can't extract a full genome. But it is a game of probabilities and statistics. In absence of harder criteria, this is likely the most probable theory, therefore it is worth to be discussed. Likewise, I am not sure how far and quickly was travel at the time or how far the ice had receded 10 kya, but its fair to assume they had fire and ships. Also the isles were connected to continental Europe at the time via doggerland. Maybe they were into timber trade or followed the big game like woolly Mammoths, which are attested 14 kya, or worse taken as slaves or otherwise driven by competing populations.