I don't think we are smarter than the previous civilizations! We have definitely lost a lot of knowledge & Information over the past centuries.. There are monuments in India which i have seen carved inside a mountain from the top to the bottom, with intricate designs - and I wonder how it could have been possible! To make such a monument today would require thousands of man hours and stone carving technology not available today! so how was i done.. i am personally a fan of History & love to understand how we evolved... So when you say Everything is stored in our DNA.. just like Blockchain.. has given me a new perspective!