nostr:npub1e2p79z2nl0xkd2n0qy52wwvej2y3j8ps28nl4utfsw0apsnc586seraqmc There are magnets marketed as zero boil off that reduce the leak of helium to negligible levels, meaning a one time fill of an MRI machine will last a very long time, instead of needing regular top-offs. Prices rising for liquid helium isn't the end of MRI's, it only forces the transition to more efficient machines. As for balloons, there's always hydrogen 💥