The Shuttle was at least an innovative vehicle and a first attempt at reusability. It was a failure, but most first attempts at anything will be.
This doesn't compare at all with the SLS, which is just recycling old tech, and even going backwards from the Shuttle in that it gives up on reusability entirely instead of trying to learn and improve from the Shuttle's mistakes.
This doesn't compare at all with the SLS, which is just recycling old tech, and even going backwards from the Shuttle in that it gives up on reusability entirely instead of trying to learn and improve from the Shuttle's mistakes.