Q 470, part I: In general, when something says you can pick a spell of a certain level, can you pick a spell of a lower level instead? Or does it have to explicitly state something like “up to X level” or “X level or less?”

Q 470, part II: Can a Psychic with Mnemonic Esoterica use it to access a spell 2 or more levels below the highest level of spell they can cast.

Q 470, part III: Can a Psychic use Primal Spells to learn a Druid spell of a lower level than the highest level of spell they know.