>>51343570The way I see it old world Pokeballs (like the stone capsule things and PLA balls) simply used a combination of steam valve mechanisms and shrinking to keep Pokemon in a rudimentary primitive stasis
Modern balls combine shrinking and energy-based storage in order to store Pokemon more efficiently and safely, and more modern things like Poke Pelago and Poke Jobs were made so trainers' mons can have stuff to do instead of just chilling in the storage system all day
