While I generally agree with what he says, I can't help but wonder why they would build something over the course of 10 years without assuming that by the time

While I generally agree with what he says, I can't help but wonder why they would build something over the course of 10 years without assuming that by the time it would be sent into space, there would be better technology available for various aspects of their design. For example, build everything around the Camera, but make sure that when it's within a year of going up into space, the design is such that the highest resolution camera available can take the current camera's place. Of course, anyone who has worked on the project will easily be able to say that I have no clue. And I don't. But I guess that if I were included in the planning stages, and it came down to the data collection components of this machine, the first thing I would add would be that it should be capable of upgrading to the latest and greatest within a year of launch. As a final note, I understand that they DID do this with software. They can update the operating system and roll back. They can advance the software, bug fix, etc, in a VERY safe way from afar.