These “scientists” sure seem to think early man was an idiot, and not the clever, thinking, learning “killing machine” he truly was/is. Another article in today’s FR feed talks about sophisticated multi-step processing of tree resin from ? 50-55,000 years ago. Give me a break! Early hunters by trial and error, observation, and serendipity, knew better than to just slide a slit piece of wood over the end of the spear point and tie it in place with a few loops of thick, easy-to-break cord. I guarantee you that early armorers knew well how to embed the points deeply in a shaft with good multipoint reinforcement and using resins and fire and many layers of thin strong cord further strengthened with resin. Fall traps (pits lightly covered over and with sharp pointed short pikes embedded in the ground at the bottom of the pit) and pikes braced against the ground or boulders or hillsides, while other hunters drive the prey to or across the ambushes, would have been well known or easily conceived. And I wonder if this article references at all the levered throwing stick/spear adaptation long used by native americans and others, the atlatl, estimated to have been used at least 17,000 years ago. The bigger the diameter of the launcher, the thicker the spear can be used. It doesn’t need much distance with that power and accuracy for several hunters to bring down a large animal. Hunters and military historians could really add to such a study.