### Comment:
I'm glad you have a deeper understanding than I do. It sounds stupid when I'm like 'SpaceX designs are evolving faster than industry norms' and cant really explain why. Your comment should be pasted under my original comment.

### REPLY:
It works as a design strategy to get a good product, and it’s how the Russians ran their rocket programs.  It’s also Silicon Valley’s favorite method of product development: open beta in perpetuity. 
  
 It introduces perils and exacerbates costs for a manufacturing organization, however.  Their model may eventually yield to a cheaper launch on repeat that’s more reliable, but they’re at least a few hundred launches away from that (once they stabilize production).

### END.