The most likely reason why hunter-gatherer technology is limited to simple tools made of stone, wood, and bone is because foraging peoples:

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Hunter-gatherer societies have a profound understanding of their environment, including which plants and animals are edible, where to find them, and when they are in season. This knowledge allows them to survive without the need for more advanced technology. Additionally, the resources required for more complex tools may not be readily available in their environment. This is why they substitute profound knowledge of their environment for complex tools, making their technology limited to simple tools made of stone, wood, and bone.

The Most Likely Reason Why Hunter-Gatherer Technology Is Limited to Simple