The guys who built the Saturn V and the Space Shuttle got this to work.
Apparently it’s now a lost art.
I guess diversity teams...never mind.
The Saturn V was fueled by kerosene and liquid oxygen.
LH2 blew up the Challenger.
This is going to prove to be a diversity-fueled fiasco that we will be lucky to ever fly. When I saw they had incorporated SRBs I almost threw up.