I don’t have so much experience with memory palaces but I have used mnemonics a fair bit with SRS/IR. It’s hard to explain and I have no idea how transferable it is but I don’t think it’s as hard to make mnemonics as you think. E.g.: if you’re trying to memorize a word in Japanese which sounds like random syllables, if you lift the filters on your brain it isn’t as bad as you’d think to figure out some connection by which to give those syllables meaning where they had none and to more easily memorize the word.
I don’t have so much experience with memory palaces but I have used mnemonics a fair bit with SRS/IR. It’s hard to explain and I have no idea how transferable it is but I don’t think it’s as hard to make mnemonics as you think. E.g.: if you’re trying to memorize a word in Japanese which sounds like random syllables, if you lift the filters on your brain it isn’t as bad as you’d think to figure out some connection by which to give those syllables meaning where they had none and to more easily memorize the word.