Elon Musk @elonmusk
@LifeboatHQ Doubling diameter increases mass 4X, but difficulty of simultaneously building & launching rocket of that size is >>4X. In retrospect, <9m diameter for Starship might have been wise. Current size is ~5200 ton stack mass & ~7500 ton-F thrust, which is more than double Saturn V. — PolitiTweet.org
