Had the opportunity to tinker with my dad’s vaxxed arm for some minutes with a fridge magnet.

The pull that one can feel in the magnet is undeniable, and if you yank the magnet too fast it kind of “depletes”, as it no longer sticks, but if you flip the magnet to the other pole and touch the arm, and them flip it again it comes back strong and “sucks” the magnet out of your hand, it’s really impressive to feel it.