The big difference is that the advancements of the past came with an increased energy usage. We have essentially reached a plateau in terms of energy costs and

The big difference is that the advancements of the past came with an increased energy usage. We have essentially reached a plateau in terms of energy costs and available energy; sending a rocket to space or making a car go round are limited by fuel consumption. Technological advancements in those areas are now devoted to either fuel efficiency, safety, and rent-seeking.