Declarative and procedural knowledge are two different memory systems. Spaced repetition is good for declarative knowledge, but for procedural (like playing music) you need lots of practice. Other examples include math and programming—you can learn lots of declarative knowledge about the concepts involved, but you still need to practice solving problems or writing code.
Edit: as for why practice every day—the procedural system requires a lot more practice than the declarative system does.
I’m not sure that linear vs. logarithmic is the key.
With many procedural skills learning to apply the skill in the first place is a lot more central than not forgetting the skill.
If you want to learn to ride a bike, a little of the practice is about repeating what you already know to avoid forgetting what you already know.
“How can we have the best deliberate practice?” is the key question for most procedural skills and you don’t need to worry much about forgetting. With declarative knowledge forgetting is a huge deal and you need strategies to counteract it.
Declarative and procedural knowledge are two different memory systems. Spaced repetition is good for declarative knowledge, but for procedural (like playing music) you need lots of practice. Other examples include math and programming—you can learn lots of declarative knowledge about the concepts involved, but you still need to practice solving problems or writing code.
Edit: as for why practice every day—the procedural system requires a lot more practice than the declarative system does.
Do we actually know procedural knowledge is linear rather than logarithmic, unlike declarative knowledge?
I’m not sure that linear vs. logarithmic is the key.
With many procedural skills learning to apply the skill in the first place is a lot more central than not forgetting the skill.
If you want to learn to ride a bike, a little of the practice is about repeating what you already know to avoid forgetting what you already know.
“How can we have the best deliberate practice?” is the key question for most procedural skills and you don’t need to worry much about forgetting. With declarative knowledge forgetting is a huge deal and you need strategies to counteract it.