The flag -y refreshes the package list (like apt update). For some reason, you use the flag -yy to force it to clear the whole package list and redownload everything.
To allow package downgrades when upgrading you use -uu.
These are very commonly suggested fixes to arch package management problems, for example when you leave your arch install to suit for too long, it will be impossible to update it because of dependency problems. So you google it and people are saying to run “pacman -SSyyuu” or other such commands.
Those additional options should be their own flags, command line flags should be idempotent (it should flip a switch on, doing it multiple times shouldn’t change anything).
Another commentee has already said that Artemis is a political stunt. I believe it’s worked magnificently. Space travel is being used to whitewash USA’s reputation and at the same time display the US’ continued military and technological dominance. It’s another message to all other countries in the world that they are going to stay slaves to US imperialism and dictatorship.
As shown by the comments here, the USians have no problem with their government if they get to see shiny new nerd pictures.