Brain size alone is not a reliable indicator of intelligence or wisdom. While Neanderthals did have larger average brain sizes compared to Homo sapiens, it's important to consider that brain size is just one factor among many that contribute to cognitive abilities.
Homo sapiens, despite having smaller average brain sizes, developed complex cultural and technological innovations that allowed them to thrive and spread across different environments. This suggests that factors other than brain size, such as social organization, communication skills, adaptability, and cultural transmission, played crucial roles in their success.
It's also worth noting that intelligence and wisdom are complex and multifaceted concepts that can't be fully captured by brain size alone. They involve various cognitive abilities, emotional intelligence, social skills, and the ability to adapt to different environments and challenges.
While Neanderthals may have had certain cognitive advantages or differences compared to Homo sapiens, it's difficult to make direct comparisons of their intelligence or wisdom based solely on brain size. Both species had their own unique adaptations and capabilities that allowed them to survive and thrive in their respective environments.