I don't think this is a stupid question at all- it actually touches on some pretty interesting topics. The human brain is absolutely fascinating, in particular

I don't think this is a stupid question at all- it actually touches on some pretty interesting topics. The human brain is absolutely fascinating, in particular because it is extremely energy efficient and fast at the tasks it does. The more we learn and understand how the brain is working the more we'll be able to improve a ton of computer science topics, from AI to signals processing and a whole bunch more in between.