One thing I'm curious about with the BFR is that the booster is a humongous
single stage rather tan a cluster like Falcon Heavy.
With a cluster Spacex would have a more incremental development path and more
potential customers for single stick versions ala F9. Any ideas on what could
be driving this design choice?
I suppose that reuse logistics would be more complex and the interstage would
be harder. But I would think that it's a cheaper way to get initial capability
and seeing 5 or more stages coming in to land in formation would be really cool!
