Process is going on

Nature is always in a process of evolution and hence being part of nature, humans also have evolved so much. From the time of Stone age to the age of robotics, it's a on-going process.

With latest technologies, we feel the generations are becoming sharper and sharper!! But I wonder, how people in age old days found out new things and experimented. We have proofs of marvellous things done by our ancestors! Then who is more intelligent?? Our ancestors or our future generations?