I’m a big fan of SpaceX and (when he can keep his mouth shut about US politics and a dozen other things) Elon Musk, but they’re hardly the first ones to launch

I’m a big fan of SpaceX and (when he can keep his mouth shut about US politics and a dozen other things) Elon Musk, but they’re hardly the first ones to launch without regular scrubs. ULA does it all the time. So does arianespace. The Russians are pretty good at it, though aerospace is yet another sector of their economy being destroyed by Putin), and the Chinese seem to get off the ground with some regularity. It’s about mature vs immature vehicles, mostly. Much as I loathe the entire SLS program and design of the rocket, it is not because they’re having some trouble with scrubs. That’s going to happen with a unique, complex, and new system.